Time to Stable

For a given set of browsers, what APIs are in all of them and how many days it take for the API to land in the first browser to the last.

Example Comparisons
Browsers
Features

Summary

A count of the number of APIs that landed in A first and B last.
Last in FirefoxLast in Chrome
First in Firefox 1666
First in Chrome 1211

Average time for an API to become available across Firefox and Chrome

2877 APIs took an average of 937.12 days to become available to use.

API breakdown:

Average time to landing by year of first landing

If a feature landed in the earliest browser in 20XX it took Y days on average to become available in the last browser (when considering Firefox and Chrome). TTA (time to available).
JS APIsJS TTACSS APIsCSS TTA
2004 3171502.503661745.39
2005 91108.00331170.30
2006 0NaN11804.27
2008 51986.401261533.37
2009 5153.8039600.92
2010 60699.75491221.88
2011 28668.75851611.15
2012 28766.3285902.49
2013 112591.4762775.37
2014 77319.621351396.15
2015 69182.91991165.28
2016 47160.4578924.74
2017 43203.63143762.46
2018 61408.61102567.16
2019 51444.9868563.49
2020 37409.08126427.44
2021 14104.4330428.07
2022 18268.9475219.01
2023 29292.07115208.90
2024 23177.7417159.76

The Tortoise and the Hare

There is a natural tension on the web with respect to browser engines. Every engine has their own set of priorities which define the level of investment that they choose to make and on which areas they choose to make it.

A developer naturally wants their experiences to be available to the widest audience possible and these differing priorities create an unevenness on the platform (a lumpiness) making it harder for developers to build experiences that work everywhere.

This section highlights where browsers are pushing and pulling on the platform.

Sprinters

This table is designed to show which browsers are pushing on the platform the most.

Adding features to quickly is not always desired because developers are unlikely to adopt those features in their sites or apps.

For a given year, if a feature landed in Browser X first, how many days it take on average to be available in Firefox and Chrome. TTA (time to available).
Year JSJS TTACSSCSS TTA
2004
  Firefox 3171502.503661745.39
2005
  Firefox 91108.00331170.30
2006
  Firefox 0NaN11804.27
2008
  Chrome 12434.001111578.65
  Firefox 41874.50151198.33
2009
  Firefox 5153.8015568.20
  Chrome 0NaN24621.38
2010
  Chrome 60699.75451279.82
  Firefox 0NaN4570.00
2011
  Firefox 7959.00412684.93
  Chrome 21572.0044610.59
2012
  Firefox 23856.5746588.00
  Chrome 5351.20391273.44
2013
  Firefox 58572.3128592.25
  Chrome 54612.0634926.18
2014
  Firefox 26338.08911626.89
  Chrome 51310.2244918.93
2015
  Chrome 13122.08341213.18
  Firefox 56197.04651140.23
2016
  Firefox 8115.00301008.60
  Chrome 39169.7748872.33
2017
  Chrome 18216.1750738.92
  Firefox 25194.6093775.12
2018
  Chrome 57425.2569314.72
  Firefox 4171.50331094.97
2019
  Firefox 0NaN47626.26
  Chrome 51444.9821423.00
2020
  Chrome 28529.5726786.73
  Firefox 934.22100334.02
2021
  Chrome 533.4020339.55
  Firefox 9143.8910605.10
2022
  Chrome 18268.9442267.45
  Firefox 0NaN33157.36
2023
  Firefox 2122.5036139.22
  Chrome 27304.6379240.66
2024
  Chrome 23177.7410124.60
  Firefox 0NaN7210.00

Plodders

This table is designed to show which browsers are pulling on the platform the most.

For a feature that first landed in year X, how many days did it take on average for the last browser to catch up across Firefox and Chrome. TTA (time to available).
Year JS countJS TTACSS countCSS TTA
2004
  Chrome 3171502.503661745.39
2005
  Chrome 91108.00331170.30
2006
  Chrome 0NaN11804.27
2008
  Firefox 12434.001111578.65
  Chrome 41874.50151198.33
2009
  Chrome 5153.8015568.20
  Firefox 0NaN24621.38
2010
  Firefox 60699.75451279.82
  Chrome 0NaN4570.00
2011
  Chrome 7959.00412684.93
  Firefox 21572.0044610.59
2012
  Chrome 23856.5746588.00
  Firefox 5351.20391273.44
2013
  Chrome 58572.3128592.25
  Firefox 54612.0634926.18
2014
  Chrome 26338.08911626.89
  Firefox 51310.2244918.93
2015
  Firefox 13122.08341213.18
  Chrome 56197.04651140.23
2016
  Chrome 8115.00301008.60
  Firefox 39169.7748872.33
2017
  Firefox 18216.1750738.92
  Chrome 25194.6093775.12
2018
  Firefox 57425.2569314.72
  Chrome 4171.50331094.97
2019
  Chrome 0NaN47626.26
  Firefox 51444.9821423.00
2020
  Firefox 28529.5726786.73
  Chrome 934.22100334.02
2021
  Firefox 533.4020339.55
  Chrome 9143.8910605.10
2022
  Firefox 18268.9442267.45
  Chrome 0NaN33157.36
2023
  Chrome 2122.5036139.22
  Firefox 27304.6379240.66
2024
  Firefox 23177.7410124.60
  Chrome 0NaN7210.00

Stable APIs

Below is a list of features that are in Firefox and Chrome

Raw Data

Quick Links:

CSS Data

API First Browser Date Last Browser Date Days Notes
css.at-rules.charset 📋Firefox11/29/2005 Chrome5/21/20091269
Firefox: Firefox 1 supported an invalid syntax where the character encoding is not between single or double quotes.Internet Explorer: From Internet Explorer 5.5 to IE 7 (inclusive), Internet Explorer supported an invalid syntax where the character encoding is not between single or double quotes.
css.at-rules.container 📋Chrome9/2/2022 Firefox2/14/2023165
css.at-rules.counter-style 📋Firefox10/14/2014 Chrome5/25/20212415
css.at-rules.counter-style.additive-symbols 📋Firefox10/14/2014 Chrome5/25/20212415
css.at-rules.counter-style.fallback 📋Firefox10/14/2014 Chrome5/25/20212415
css.at-rules.counter-style.negative 📋Firefox10/14/2014 Chrome5/25/20212415
css.at-rules.counter-style.pad 📋Firefox10/14/2014 Chrome5/25/20212415
css.at-rules.counter-style.prefix 📋Firefox10/14/2014 Chrome5/25/20212415
css.at-rules.counter-style.range 📋Firefox10/14/2014 Chrome5/25/20212415
css.at-rules.counter-style.speak-as 📋Firefox10/14/2014 Chrome5/25/20212415
css.at-rules.counter-style.suffix 📋Firefox10/14/2014 Chrome5/25/20212415
css.at-rules.counter-style.symbols 📋Firefox10/14/2014 Chrome5/25/20212415
Chrome: Does not support <image> as a value for the symbols descriptor.Chrome Android: Does not support <image> as a value for the symbols descriptor.Edge: Does not support <image> as a value for the symbols descriptor.Firefox: Does not support <image> as a value for the symbols descriptor.Firefox for Android: Does not support <image> as a value for the symbols descriptor.Quest Browser: Does not support <image> as a value for the symbols descriptor.Opera: Does not support <image> as a value for the symbols descriptor.Opera Android: Does not support <image> as a value for the symbols descriptor.Samsung Internet: Does not support <image> as a value for the symbols descriptor.WebView Android: Does not support <image> as a value for the symbols descriptor.
css.at-rules.counter-style.system 📋Firefox10/14/2014 Chrome5/25/20212415
css.at-rules.font-face 📋Chrome12/11/2008 Firefox6/30/2009201
css.at-rules.font-face.OpenType_COLRv0 Firefox7/22/2014 Chrome8/31/2016771
css.at-rules.font-face.OpenType_COLRv1 Chrome2/1/2022 Firefox11/15/2022287
css.at-rules.font-face.WOFF 📋Firefox6/30/2009 Chrome9/2/2010429
css.at-rules.font-face.WOFF_2 📋Chrome7/16/2014 Firefox7/2/2015351
Safari: Supported only on macOS 10.12 (Sierra) and later.
css.at-rules.font-face.ascent-override 📋Chrome11/17/2020 Firefox6/1/2021196
css.at-rules.font-face.descent-override 📋Chrome11/17/2020 Firefox6/1/2021196
css.at-rules.font-face.font-display 📋Chrome7/25/2017 Firefox1/23/2018182
css.at-rules.font-face.font-family 📋Firefox6/30/2009 Chrome1/25/2010209
css.at-rules.font-face.font-stretch 📋Chrome10/17/2017 Firefox9/5/2018323
css.at-rules.font-face.font-style 📋Firefox6/30/2009 Chrome1/25/2010209
css.at-rules.font-face.font-variant Firefox6/30/2009 Chrome1/25/2010209
css.at-rules.font-face.font-weight 📋Firefox6/30/2009 Chrome1/25/2010209
css.at-rules.font-face.line-gap-override 📋Chrome11/17/2020 Firefox6/1/2021196
css.at-rules.font-face.size-adjust 📋Chrome7/20/2021 Firefox9/7/202149
css.at-rules.font-face.src 📋Firefox6/30/2009 Chrome1/25/2010209
css.at-rules.font-face.src.drop_invalid_item Chrome11/29/2022 Firefox1/17/202349
Chrome: Chrome drops invalid item for tech() but not other invalid valuesChrome Android: Chrome Android drops invalid item for tech() but not other invalid valuesEdge: Edge drops invalid item for tech() but not other invalid valuesOpera: Opera drops invalid item for tech() but not other invalid valuesOpera Android: Opera Android drops invalid item for tech() but not other invalid valuesSamsung Internet: Samsung Internet drops invalid item for tech() but not other invalid valuesWebView Android: WebView Android drops invalid item for tech() but not other invalid values
css.at-rules.font-face.src.format_variations Chrome4/17/2018 Firefox9/5/2018141
css.at-rules.font-face.src.tech_keyword Firefox11/15/2022 Chrome11/29/202214
css.at-rules.font-face.unicode-range 📋Chrome12/11/2008 Firefox2/24/20152266
css.at-rules.font-feature-values 📋Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.annotation Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.character-variant Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.historical-forms Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.ornaments Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.styleset Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.stylistic Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-feature-values.swash Firefox12/1/2014 Chrome3/7/20233018
css.at-rules.font-palette-values 📋Chrome4/26/2022 Firefox11/15/2022203
css.at-rules.font-palette-values.base-palette 📋Chrome4/26/2022 Firefox11/15/2022203
css.at-rules.font-palette-values.font-family 📋Chrome4/26/2022 Firefox11/15/2022203
css.at-rules.font-palette-values.override-colors 📋Chrome4/26/2022 Firefox11/15/2022203
css.at-rules.import 📋Firefox11/9/2004 Chrome12/11/20081493
css.at-rules.import.layer 📋Firefox2/8/2022 Chrome3/1/202221
css.at-rules.import.supports 📋Firefox7/4/2023 Chrome2/20/2024231
css.at-rules.keyframes 📋Firefox10/9/2012 Chrome5/19/2015952
css.at-rules.keyframes.ignore_important_declarations Firefox2/19/2013 Chrome9/1/2015924
css.at-rules.layer 📋Firefox2/8/2022 Chrome3/1/202221
css.at-rules.media 📋Firefox11/9/2004 Chrome12/11/20081493
css.at-rules.media.-webkit-device-pixel-ratio 📋Chrome12/11/2008 Firefox10/23/20183603
Firefox: Implemented as an alias for -moz-device-pixel-ratio.Firefox for Android: Implemented as an alias for -moz-device-pixel-ratio.
css.at-rules.media.-webkit-max-device-pixel-ratio 📋Chrome12/11/2008 Firefox10/23/20183603
Firefox: Implemented as an alias for max--moz-device-pixel-ratio.Firefox for Android: Implemented as an alias for max--moz-device-pixel-ratio.
css.at-rules.media.-webkit-min-device-pixel-ratio 📋Chrome12/11/2008 Firefox10/23/20183603
Firefox: Implemented as an alias for min--moz-device-pixel-ratio.Firefox for Android: Implemented as an alias for min--moz-device-pixel-ratio.
css.at-rules.media.-webkit-transform-3d 📋Chrome5/21/2009 Firefox9/20/20162679
css.at-rules.media.any-hover 📋Chrome3/3/2015 Firefox12/11/20181379
css.at-rules.media.any-pointer 📋Chrome3/3/2015 Firefox12/11/20181379
css.at-rules.media.aspect-ratio 📋Firefox6/30/2009 Chrome9/15/200977
css.at-rules.media.calc 📋Firefox3/13/2018 Chrome4/17/201835
css.at-rules.media.color 📋Firefox10/24/2006 Chrome12/11/2008779
css.at-rules.media.color-gamut 📋Chrome4/19/2017 Firefox2/14/20232127
css.at-rules.media.device-aspect-ratio 📋Firefox10/24/2006 Chrome12/11/2008779
css.at-rules.media.device-height 📋Firefox10/24/2006 Chrome12/11/2008779
css.at-rules.media.device-width 📋Firefox10/24/2006 Chrome12/11/2008779
css.at-rules.media.display-mode 📋Chrome4/14/2015 Firefox6/7/2016420
Firefox: Firefox 47 and later support display-mode values fullscreen and browser. Firefox 57 added support for minimal-ui and standalone values.Firefox for Android: Only supports the browser value, which always reports true.
css.at-rules.media.dynamic-range 📋Chrome2/1/2022 Firefox5/3/202291
css.at-rules.media.forced-colors 📋Chrome3/2/2021 Firefox6/1/202191
css.at-rules.media.grid 📋Firefox10/24/2006 Chrome12/11/2008779
css.at-rules.media.height 📋Firefox10/24/2006 Chrome12/11/2008779
css.at-rules.media.hover 📋Chrome10/7/2014 Firefox12/11/20181526
Chrome: Before Chrome 41, the implementation was buggy and reported (hover: none) on non-touch-based computers with a mouse/trackpad. See bug 40397980.Opera: Before Opera 28, the implementation was buggy and reported (hover: none) on non-touch-based computers with a mouse/trackpad. See bug 40397980.
css.at-rules.media.media_features Firefox11/9/2004 Chrome12/11/20081493
css.at-rules.media.media_query_values Firefox3/13/2018 Chrome4/17/201835
css.at-rules.media.monochrome 📋Firefox10/24/2006 Chrome12/11/2008779
css.at-rules.media.nested-queries Firefox3/13/2012 Chrome3/26/2013378
css.at-rules.media.or_syntax Firefox12/11/2018 Chrome8/2/20221330
css.at-rules.media.orientation 📋Firefox10/24/2006 Chrome9/15/20091057
css.at-rules.media.overflow-block 📋Firefox3/19/2019 Chrome5/2/20231505
css.at-rules.media.overflow-inline 📋Firefox3/19/2019 Chrome5/2/20231505
css.at-rules.media.pointer 📋Chrome3/3/2015 Firefox12/11/20181379
css.at-rules.media.prefers-color-scheme 📋Firefox5/21/2019 Chrome7/30/201970
css.at-rules.media.prefers-color-scheme.respects-inherited-scheme Firefox9/20/2022 Chrome9/17/2024728
Chrome: Only supports SVG images, not iframes.Chrome Android: Only supports SVG images, not iframes.Edge: Only supports SVG images, not iframes.Opera: Only supports SVG images, not iframes.Opera Android: Only supports SVG images, not iframes.Samsung Internet: Only supports SVG images, not iframes.WebView Android: Only supports SVG images, not iframes.
css.at-rules.media.prefers-contrast 📋Chrome11/15/2021 Firefox5/31/2022197
css.at-rules.media.prefers-reduced-motion 📋Firefox10/23/2018 Chrome4/23/2019182
css.at-rules.media.prefers-reduced-transparency 📋Firefox5/9/2023 Chrome10/10/2023154
css.at-rules.media.range_syntax Firefox6/28/2022 Chrome8/2/202235
Firefox: Only supports range notations where the feature name comes before any value (width > 500px)Firefox for Android: Only supports range notations where the feature name comes before any value (width > 500px)
css.at-rules.media.resolution 📋Firefox11/8/2011 Chrome8/20/2013651
Firefox: Supports <integer> values only.Firefox for Android: Supports <integer> values only.
css.at-rules.media.scripting 📋Firefox5/9/2023 Chrome12/5/2023210
css.at-rules.media.update 📋Firefox6/28/2022 Chrome5/2/2023308
css.at-rules.media.video-dynamic-range 📋Chrome2/1/2022 Firefox5/3/202291
css.at-rules.media.width 📋Firefox10/24/2006 Chrome12/11/2008779
css.at-rules.namespace 📋Firefox11/9/2004 Chrome12/11/20081493
css.at-rules.page 📋Chrome5/21/2009 Firefox2/19/20131370
css.at-rules.page.page-orientation 📋Chrome8/25/2020 Firefox1/23/20241246
css.at-rules.page.size 📋Chrome10/25/2011 Firefox12/7/20213696
css.at-rules.page.size.jis-b4 📋Chrome5/19/2020 Firefox12/7/2021567
css.at-rules.page.size.jis-b5 📋Chrome5/19/2020 Firefox12/7/2021567
css.at-rules.property 📋Chrome8/25/2020 Firefox7/9/20241414
css.at-rules.property.inherits 📋Chrome8/25/2020 Firefox7/9/20241414
css.at-rules.property.initial-value 📋Chrome8/25/2020 Firefox7/9/20241414
css.at-rules.property.syntax 📋Chrome8/25/2020 Firefox7/9/20241414
css.at-rules.scope 📋Chrome10/10/2023 Firefox7/9/2024273
css.at-rules.starting-style 📋Chrome9/12/2023 Firefox8/6/2024329
Firefox: Does not yet support animating from display: noneFirefox for Android: Does not yet support animating from display: none
css.at-rules.supports 📋Firefox6/25/2013 Chrome7/9/201314
css.at-rules.supports.font-format Firefox10/18/2022 Chrome11/29/202242
css.at-rules.supports.font-tech Firefox10/18/2022 Chrome11/29/202242
css.at-rules.supports.selector Firefox9/3/2019 Chrome5/19/2020259
css.properties.-webkit-mask-position-x Chrome12/11/2008 Firefox9/20/20162840
css.properties.-webkit-mask-position-y Chrome12/11/2008 Firefox9/20/20162840
css.properties.-webkit-text-fill-color 📋Chrome12/11/2008 Firefox9/20/20162840
css.properties.-webkit-text-security Chrome12/11/2008 Firefox6/6/20235290
css.properties.-webkit-text-stroke 📋Chrome1/25/2010 Firefox9/20/20162430
css.properties.-webkit-text-stroke-color 📋Chrome12/11/2008 Firefox9/20/20162840
css.properties.-webkit-text-stroke-width 📋Chrome12/11/2008 Firefox9/20/20162840
css.properties.accent-color 📋Chrome8/31/2021 Firefox9/7/20217
Safari: Safari does not adjust the color of glyphs (such as checkmarks) on form controls to maintain contrast. See bug 244233.Safari on iOS: Safari on iOS does not adjust the color of glyphs (such as checkmarks) on form controls to maintain contrast. See bug 244233.WebView on iOS: WebView on iOS does not adjust the color of glyphs (such as checkmarks) on form controls to maintain contrast. See bug 244233.
css.properties.accent-color.auto Chrome8/31/2021 Firefox9/7/20217
css.properties.align-content 📋Chrome8/20/2013 Firefox3/18/2014210
css.properties.align-content.block_context 📋Chrome3/19/2024 Firefox4/16/202428
css.properties.align-content.flex_context 📋Chrome7/31/2012 Firefox3/18/2014595
css.properties.align-content.flex_context.baseline Firefox3/8/2016 Chrome3/9/2017366
css.properties.align-content.flex_context.first_baseline Firefox3/7/2017 Chrome6/5/201790
css.properties.align-content.flex_context.safe_unsafe Firefox10/23/2018 Chrome7/18/20231729
Chrome: Before version 115, this value is recognized, but has no effect.Chrome Android: Before version 115, this value is recognized, but has no effect.Edge: Before version 115, this value is recognized, but has no effect.Opera: Before version 101, this value is recognized, but has no effect.Opera Android: Before version 77, this value is recognized, but has no effect.Samsung Internet: Before version 23.0, this value is recognized, but has no effect.WebView Android: Before version 115, this value is recognized, but has no effect.
css.properties.align-content.flex_context.space-evenly Firefox3/7/2017 Chrome7/25/2017140
css.properties.align-content.flex_context.start_end Firefox3/8/2016 Chrome8/31/20212002
Opera: Before version 79, this value is recognized, but has no effect.Opera Android: This value is recognized, but has no effect.
css.properties.align-content.flex_context.stretch Firefox3/7/2017 Chrome3/9/20172
css.properties.align-content.grid_context 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.align-items 📋Firefox4/2/2013 Chrome8/20/2013140
css.properties.align-items.flex_context 📋Firefox4/2/2013 Chrome7/20/20161205
Chrome: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Chrome implements the new behavior beginning with Chrome 52.Chrome Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Chrome Android implements the new behavior beginning with Chrome Android 52.Firefox: Multi-line flexbox has been supported since Firefox 28.Firefox for Android: Multi-line flexbox has been supported since Firefox for Android 28.Internet Explorer: In Internet Explorer 10 and 11, if column flex items have align-items: center; set on them and their content is too large, then they will overflow the bounds of their container. See Flexbug #2.Opera: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Opera implements the new behavior beginning with Opera 39.Opera Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Opera Android implements the new behavior beginning with Opera Android 41.Samsung Internet: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Samsung Internet implements the new behavior beginning with Samsung Internet 6.0.WebView Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. WebView Android implements the new behavior beginning with WebView Android 52.
css.properties.align-items.flex_context.baseline Chrome7/31/2012 Firefox3/18/2014595
css.properties.align-items.flex_context.first_baseline Firefox3/7/2017 Chrome6/5/201790
css.properties.align-items.flex_context.last_baseline Firefox3/7/2017 Chrome11/29/20222093
css.properties.align-items.flex_context.safe_unsafe Firefox10/23/2018 Chrome7/18/20231729
Chrome: Before version 115, this value is recognized, but has no effect.Chrome Android: Before version 115, this value is recognized, but has no effect.Edge: Before version 115, this value is recognized, but has no effect.Opera: Before version 101, this value is recognized, but has no effect.Opera Android: Before version 77, this value is recognized, but has no effect.Samsung Internet: Before version 23.0, this value is recognized, but has no effect.WebView Android: Before version 115, this value is recognized, but has no effect.
css.properties.align-items.flex_context.start_end Firefox3/8/2016 Chrome8/31/20212002
css.properties.align-items.grid_context 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.align-items.grid_context.start_end Firefox3/7/2017 Chrome3/9/20172
css.properties.align-self 📋Firefox4/2/2013 Chrome8/20/2013140
css.properties.align-self.flex_context 📋Firefox4/2/2013 Chrome7/16/2014470
Chrome: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Chrome implements the new behavior beginning with Chrome 52.Chrome Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Chrome Android implements the new behavior beginning with Chrome Android 52.Firefox: Before Firefox 27, only single-line flexbox is supported.Firefox for Android: Before Firefox for Android 27, only single-line flexbox is supported.Samsung Internet: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Samsung Internet implements the new behavior beginning with Samsung Internet 6.0.WebView Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. WebView Android implements the new behavior beginning with WebView Android 52.
css.properties.align-self.flex_context.baseline Chrome7/31/2012 Firefox3/18/2014595
css.properties.align-self.flex_context.first_baseline Firefox3/7/2017 Chrome6/5/201790
css.properties.align-self.flex_context.last_baseline Firefox3/7/2017 Chrome11/29/20222093
css.properties.align-self.flex_context.safe_unsafe Firefox10/23/2018 Chrome7/18/20231729
Chrome: Before version 115, this value is recognized, but has no effect.Chrome Android: Before version 115, this value is recognized, but has no effect.Edge: Before version 115, this value is recognized, but has no effect.Opera: Before version 101, this value is recognized, but has no effect.Opera Android: Before version 77, this value is recognized, but has no effect.Samsung Internet: Before version 23.0, this value is recognized, but has no effect.WebView Android: Before version 115, this value is recognized, but has no effect.
css.properties.align-self.flex_context.start_end Firefox3/8/2016 Chrome8/31/20212002
Opera: Before version 79, this value is recognized, but has no effect.
css.properties.align-self.flex_context.stretch Firefox3/7/2017 Chrome3/9/20172
css.properties.align-self.grid_context 📋Firefox3/7/2017 Chrome3/9/20172
Internet Explorer: Internet Explorer 10 and 11 have the property -ms-grid-row-align, which acts in a similar way to align-self.
css.properties.align-self.position_absolute_context 📋Chrome2/20/2024 Firefox1/7/2025322
css.properties.all 📋Firefox2/4/2014 Chrome8/26/2014203
css.properties.animation 📋Firefox10/9/2012 Chrome5/19/2015952
WebView Android: The animation-fill-mode property is not supported in Android browsers below 2.3.
css.properties.animation-composition 📋Chrome4/4/2023 Firefox7/4/202391
css.properties.animation-delay 📋Firefox10/9/2012 Chrome5/19/2015952
Firefox: Before Firefox 57, Firefox does not repaint elements outside the viewport that are animated into the viewport with a delay. This bug affects only some platforms, such as Windows.
css.properties.animation-direction 📋Firefox10/9/2012 Chrome5/19/2015952
css.properties.animation-direction.alternate 📋Chrome9/15/2009 Firefox6/21/2011644
css.properties.animation-direction.alternate-reverse 📋Chrome5/15/2012 Firefox10/9/2012147
css.properties.animation-direction.normal 📋Chrome9/15/2009 Firefox6/21/2011644
css.properties.animation-direction.reverse 📋Chrome5/15/2012 Firefox10/9/2012147
css.properties.animation-duration 📋Firefox10/9/2012 Chrome5/19/2015952
Internet Explorer: Once the element has loaded, changing the value of this property has no effect.
css.properties.animation-fill-mode 📋Firefox10/9/2012 Chrome5/19/2015952
css.properties.animation-fill-mode.backwards 📋Chrome9/15/2009 Firefox6/21/2011644
css.properties.animation-fill-mode.both 📋Chrome9/15/2009 Firefox6/21/2011644
css.properties.animation-fill-mode.forwards 📋Chrome9/15/2009 Firefox6/21/2011644
css.properties.animation-fill-mode.none 📋Chrome9/15/2009 Firefox6/21/2011644
css.properties.animation-iteration-count 📋Firefox10/9/2012 Chrome5/19/2015952
css.properties.animation-iteration-count.infinite 📋Chrome9/15/2009 Firefox6/21/2011644
css.properties.animation-name 📋Firefox10/9/2012 Chrome5/19/2015952
css.properties.animation-name.none 📋Chrome9/15/2009 Firefox6/21/2011644
css.properties.animation-play-state 📋Firefox10/9/2012 Chrome5/19/2015952
css.properties.animation-play-state.paused 📋Chrome9/15/2009 Firefox6/21/2011644
css.properties.animation-play-state.running 📋Chrome9/15/2009 Firefox6/21/2011644
css.properties.animation-timeline 📋Firefox2/14/2023 Chrome7/18/2023154
css.properties.animation-timeline.scroll 📋Firefox2/14/2023 Chrome7/18/2023154
Firefox: Zero scroll range is treated as 100% but should be 0% (see bug 1780865).Firefox: Supports the deprecated horizontal and vertical axis values, and not the x and y values.
css.properties.animation-timeline.view 📋Firefox6/6/2023 Chrome7/18/202342
css.properties.animation-timing-function 📋Firefox10/9/2012 Chrome5/19/2015952
css.properties.animation-timing-function.jump Firefox1/29/2019 Chrome9/10/2019224
css.properties.appearance 📋Chrome7/27/2020 Firefox8/25/202029
css.properties.appearance.auto 📋Chrome5/19/2020 Firefox8/25/202098
css.properties.appearance.button 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.appearance.checkbox 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.appearance.listbox 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.appearance.menulist 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.appearance.menulist-button 📋Chrome12/11/2008 Firefox8/25/20204275
Firefox: See bug 1481615.Firefox for Android: See bug 1481615.
css.properties.appearance.meter 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.appearance.none 📋Chrome12/11/2008 Firefox6/13/20173106
Firefox: Doesn't work with <input type="checkbox"> and <input type="radio">.Firefox for Android: Doesn't work with <input type="checkbox"> and <input type="radio">.
css.properties.appearance.progress-bar 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.appearance.radio 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.appearance.searchfield 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.appearance.textarea 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.appearance.textfield 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.aspect-ratio 📋Chrome1/19/2021 Firefox6/1/2021133
css.properties.aspect-ratio.auto 📋Chrome1/19/2021 Firefox6/1/2021133
css.properties.backdrop-filter 📋Chrome7/30/2019 Firefox7/26/20221092
css.properties.backface-visibility 📋Firefox10/9/2012 Chrome7/16/2014645
css.properties.background 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background.SVG_image_as_background Chrome12/11/2008 Firefox3/22/2011831
css.properties.background.background-clip Chrome7/31/2012 Firefox6/25/2013329
css.properties.background.background-origin Chrome7/31/2012 Firefox6/25/2013329
css.properties.background.background-size Firefox12/20/2011 Chrome7/31/2012224
css.properties.background.multiple_backgrounds Chrome12/11/2008 Firefox1/21/2010406
css.properties.background-attachment 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-attachment.fixed 📋Firefox10/24/2006 Chrome12/11/2008779
Safari: local is recognized but has no effect. See bug 219324.Safari on iOS: fixed is recognized but has no effect. See bug 219324.WebView on iOS: fixed is recognized but has no effect. See bug 219324.
css.properties.background-attachment.local 📋Chrome12/11/2008 Firefox10/29/20131783
Safari: local is recognized but has no effect. See bug 219324.Safari on iOS: local is recognized but has no effect. See bug 219324.Safari on iOS: If -webkit-overflow-scrolling: touch is set, then local has no effect.WebView on iOS: local is recognized but has no effect. See bug 219324.WebView on iOS: If -webkit-overflow-scrolling: touch is set, then local has no effect.
css.properties.background-attachment.multiple_backgrounds Chrome12/11/2008 Firefox1/21/2010406
css.properties.background-attachment.scroll 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-blend-mode 📋Chrome5/20/2014 Firefox6/10/201421
css.properties.background-clip 📋Chrome12/11/2008 Firefox3/22/2011831
Chrome: Chrome accepts alternate synonyms to its values: padding, border, and content.Chrome Android: Chrome Android accepts alternate synonyms to its values: padding, border, and content.Edge: Since Edge 79, accepts alternate synonyms to its values: padding, border, and content.Firefox: Used the -moz-background-clip: padding | border syntax.Internet Explorer: In IE 7 and IE 8 of Internet Explorer, this property always behaved like background-clip: padding-box when overflow was hidden, auto, or scroll.Quest Browser: Quest Browser accepts alternate synonyms to its values: padding, border, and content.Opera: Opera accepts alternate synonyms to its values: padding, border, and content.Opera Android: Opera accepts alternate synonyms to its values: padding, border, and content.Safari: Safari accepts alternate synonyms to its values: padding, border, and content.Safari on iOS: Safari accepts alternate synonyms to its values: padding, border, and content.Samsung Internet: Samsung Internet accepts alternate synonyms to its values: padding, border, and content.WebView Android: WebView Android accepts alternate synonyms to its values: padding, border, and content.WebView on iOS: Safari accepts alternate synonyms to its values: padding, border, and content.
css.properties.background-clip.border-box 📋Chrome12/11/2008 Firefox3/22/2011831
css.properties.background-clip.content-box 📋Chrome12/11/2008 Firefox3/22/2011831
Internet Explorer: In IE 7 and IE 9 of Internet Explorer, it always behaved like background-clip: padding-box if overflow: hidden | auto | scroll
css.properties.background-clip.padding-box 📋Chrome12/11/2008 Firefox3/22/2011831
css.properties.background-clip.text 📋Firefox9/20/2016 Chrome12/5/20232632
Chrome: The text value is only supported by -webkit-background-clip (and not by background-clip; see bug 40229927).Chrome Android: The text value is only supported by -webkit-background-clip (and not by background-clip; see bug 40229927).Edge: The text value is only supported by -webkit-background-clip (and not by background-clip; see bug 40229927).Edge: Before Edge 15, this value was supported with the prefixed version of the property only.Firefox: Does not work with background-attachment: fixed (bug 1313757), in multi-layer backgrounds with other values (bug 1481498), and in some other special cases (see bug 1656784).Firefox for Android: Does not work with background-attachment: fixed (bug 1313757), in multi-layer backgrounds with other values (bug 1481498), and in some other special cases (see bug 1656784).Quest Browser: The text value is only supported by -webkit-background-clip (and not by background-clip; see bug 40229927).Opera: The text value is only supported by -webkit-background-clip (and not by background-clip; see bug 40229927).Opera Android: The text value is only supported by -webkit-background-clip (and not by background-clip; see bug 40229927).Safari: The text value is only supported by -webkit-background-clip (and not by background-clip).Safari on iOS: The text value is only supported by -webkit-background-clip (and not by background-clip).Samsung Internet: The text value is only supported by -webkit-background-clip (and not by background-clip; see bug 40229927).WebView Android: The text value is only supported by -webkit-background-clip (and not by background-clip; see bug 40229927).WebView on iOS: The text value is only supported by -webkit-background-clip (and not by background-clip).
css.properties.background-color 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: In Internet Explorer 8 and 9, there is a bug where a computed background-color of transparent causes click events to not get fired on overlaid elements.
css.properties.background-image 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: If the browser.display.use_document_colors user preference in about:config is set to false, background images will not be displayed.Firefox for Android: If the browser.display.use_document_colors user preference in about:config is set to false, background images will not be displayed.
css.properties.background-image.gradients 📋Chrome12/11/2008 Firefox1/21/2010406
Chrome: Some versions support only experimental gradients prefixed with -webkit.Chrome Android: Some versions support only experimental gradients prefixed with -webkit.Firefox: Some versions support only experimental gradients prefixed with -moz.Firefox for Android: Some versions support only experimental gradients prefixed with -moz.Quest Browser: Some versions support only experimental gradients prefixed with -webkit.Opera: Some versions support only experimental gradients prefixed with -o.Opera Android: Some versions support only experimental gradients prefixed with -webkit.Safari: Some versions support only experimental gradients prefixed with -webkit.Safari on iOS: Some versions support only experimental gradients prefixed with -webkit.Samsung Internet: Some versions support only experimental gradients prefixed with -webkit.WebView Android: Some versions support only experimental gradients prefixed with -webkit.WebView on iOS: Some versions support only experimental gradients prefixed with -webkit.
css.properties.background-image.image-set 📋Firefox6/1/2021 Chrome5/2/2023700
Chrome: Support for url images only and x is the only supported resolution unit.Chrome Android: Support for url images only and x is the only supported resolution unit.Edge: Support for url images only and x is the only supported resolution unit.Firefox: The type() function is not supported as an argument to image-set().Firefox for Android: The type() function is not supported as an argument to image-set().Quest Browser: Support for url images only and x is the only supported resolution unit.Opera: Support for url images only and x is the only supported resolution unit.Opera Android: Support for url images only and x is the only supported resolution unit.Safari: The type() function is not supported as an argument to image-set().Safari: The type() function is not supported as an argument to image-set().Safari: Support for url images only and x is the only supported resolution unit.Safari: Support for url images only and x is the only supported resolution unit.Safari on iOS: The type() function is not supported as an argument to image-set().Safari on iOS: The type() function is not supported as an argument to image-set().Safari on iOS: Support for url images only and x is the only supported resolution unit.Safari on iOS: Support for url images only and x is the only supported resolution unit.Samsung Internet: Support for url images only and x is the only supported resolution unit.WebView Android: Support for url images only and x is the only supported resolution unit.WebView on iOS: The type() function is not supported as an argument to image-set().WebView on iOS: The type() function is not supported as an argument to image-set().WebView on iOS: Support for url images only and x is the only supported resolution unit.WebView on iOS: Support for url images only and x is the only supported resolution unit.
css.properties.background-image.multiple_backgrounds Chrome12/11/2008 Firefox1/21/2010406
css.properties.background-image.none 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-image.svg_images Chrome12/2/2010 Firefox3/22/2011110
Safari: Support of SVG in CSS background is incomplete.Safari on iOS: Support of SVG in CSS background is incomplete.WebView on iOS: Support of SVG in CSS background is incomplete.
css.properties.background-origin 📋Chrome12/11/2008 Firefox3/22/2011831
Chrome: Chrome accepts alternate synonyms to its values: padding, border, and content.Chrome Android: Chrome Android accepts alternate synonyms to its values: padding, border, and content.Edge: Since Edge 79, accepts alternate synonyms to its values: padding, border, and content.Firefox: Used the -moz-background-clip: padding | border syntax.Internet Explorer: In IE 7 and before, Internet explorer was behaving as if background-origin: border-box was set. In Internet Explorer 8, as if background-origin: padding-box, the regular default value, was set.Quest Browser: Quest Browser accepts alternate synonyms to its values: padding, border, and content.Opera: Opera accepts alternate synonyms to its values: padding, border, and content.Opera Android: Opera accepts alternate synonyms to its values: padding, border, and content.Safari: Webkit accepts alternate synonyms to its values: padding, border, and content.Safari on iOS: Webkit accepts alternate synonyms to its values: padding, border, and content.Samsung Internet: Samsung Internet accepts alternate synonyms to its values: padding, border, and content.WebView Android: WebView accepts alternate synonyms to its values: padding, border, and content.WebView on iOS: Webkit accepts alternate synonyms to its values: padding, border, and content.
css.properties.background-origin.border-box 📋Chrome12/11/2008 Firefox3/22/2011831
css.properties.background-origin.content-box 📋Chrome12/11/2008 Firefox3/22/2011831
Internet Explorer: In IE 7 and IE 9 of Internet Explorer, it always behaved like background-clip: padding if overflow: hidden | auto | scroll.
css.properties.background-origin.padding-box 📋Chrome12/11/2008 Firefox3/22/2011831
css.properties.background-position 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-position.bottom 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-position.center 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-position.left 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-position.multiple_backgrounds Chrome12/11/2008 Firefox1/21/2010406
css.properties.background-position.right 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-position.side-relative_values Firefox6/5/2012 Chrome2/21/2013261
css.properties.background-position.top 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-position-x 📋Chrome12/11/2008 Firefox9/20/20162840
css.properties.background-position-y 📋Chrome12/11/2008 Firefox9/20/20162840
css.properties.background-repeat 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-repeat.2-value Chrome9/15/2009 Firefox6/5/2012994
css.properties.background-repeat.multiple_backgrounds Chrome12/11/2008 Firefox1/21/2010406
css.properties.background-repeat.no-repeat 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-repeat.repeat 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-repeat.repeat-x 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-repeat.repeat-y 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.background-repeat.round 📋Chrome10/1/2013 Firefox9/20/20161085
css.properties.background-repeat.space 📋Chrome10/1/2013 Firefox9/20/20161085
css.properties.background-size 📋Chrome9/15/2009 Firefox3/22/2011553
Chrome: WebKit-based browsers originally implemented an older draft of CSS3 background-size in which an omitted second value is treated as duplicating the first value; this draft does not include the contain or cover keywords.Chrome Android: WebKit-based browsers originally implemented an older draft of CSS3 background-size in which an omitted second value is treated as duplicating the first value; this draft does not include the contain or cover keywords.Quest Browser: WebKit-based browsers originally implemented an older draft of CSS3 background-size in which an omitted second value is treated as duplicating the first value; this draft does not include the contain or cover keywords.Opera: WebKit-based browsers originally implemented an older draft of CSS3 background-size in which an omitted second value is treated as duplicating the first value; this draft does not include the contain or cover keywords.Opera: Opera 9.5's computation of the background positioning area is incorrect for fixed backgrounds. Opera 9.5 also interprets the two-value form as a horizontal scaling factor and, from appearances, a vertical clipping dimension. This has been fixed in Opera 10.Opera Android: WebKit-based browsers originally implemented an older draft of CSS3 background-size in which an omitted second value is treated as duplicating the first value; this draft does not include the contain or cover keywords.Opera Android: Opera 9.5's computation of the background positioning area is incorrect for fixed backgrounds. Opera 9.5 also interprets the two-value form as a horizontal scaling factor and, from appearances, a vertical clipping dimension. This has been fixed in Opera 10.Safari: WebKit-based browsers originally implemented an older draft of CSS3 background-size in which an omitted second value is treated as duplicating the first value; this draft does not include the contain or cover keywords.Safari on iOS: WebKit-based browsers originally implemented an older draft of CSS3 background-size in which an omitted second value is treated as duplicating the first value; this draft does not include the contain or cover keywords.Samsung Internet: WebKit-based browsers originally implemented an older draft of CSS3 background-size in which an omitted second value is treated as duplicating the first value; this draft does not include the contain or cover keywords.WebView Android: WebKit-based browsers originally implemented an older draft of CSS3 background-size in which an omitted second value is treated as duplicating the first value; this draft does not include the contain or cover keywords.WebView on iOS: WebKit-based browsers originally implemented an older draft of CSS3 background-size in which an omitted second value is treated as duplicating the first value; this draft does not include the contain or cover keywords.
css.properties.background-size.auto 📋Chrome12/11/2008 Firefox1/21/2010406
css.properties.background-size.contain 📋Chrome9/15/2009 Firefox1/21/2010128
css.properties.background-size.cover 📋Chrome9/15/2009 Firefox1/21/2010128
css.properties.baseline-source 📋Chrome3/7/2023 Firefox7/4/2023119
css.properties.baseline-source.auto 📋Chrome3/7/2023 Firefox7/4/2023119
css.properties.baseline-source.first 📋Chrome3/7/2023 Firefox7/4/2023119
css.properties.baseline-source.last 📋Chrome3/7/2023 Firefox7/4/2023119
css.properties.block-size 📋Firefox9/22/2015 Chrome3/9/2017534
css.properties.block-size.fit-content Chrome3/9/2017 Firefox11/2/20211699
css.properties.block-size.max-content Chrome3/9/2017 Firefox3/19/2019740
css.properties.block-size.min-content Chrome3/9/2017 Firefox3/19/2019740
css.properties.border 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-block 📋Firefox3/19/2019 Chrome11/17/2020609
css.properties.border-block-color 📋Firefox3/19/2019 Chrome11/17/2020609
css.properties.border-block-end 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-block-end-color 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-block-end-style 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-block-end-width 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-block-start 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-block-start-color 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-block-start-style 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-block-start-width 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-block-style 📋Firefox3/19/2019 Chrome11/17/2020609
css.properties.border-block-width 📋Firefox3/19/2019 Chrome11/17/2020609
css.properties.border-bottom 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-bottom-color 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-bottom-left-radius 📋Chrome1/25/2010 Firefox3/22/2011421
Firefox: Before Firefox 50, border styles of rounded corners were always rendered as if border-style was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners were always rendered as if border-style was solid. This has been fixed in Firefox for Android 50.
css.properties.border-bottom-left-radius.elliptical_corners Chrome12/11/2008 Firefox6/30/2009201
css.properties.border-bottom-left-radius.percentages Chrome1/25/2010 Firefox3/22/2011421
Firefox: Before Firefox 4, the <percentage> was relative to the width of the box even when specifying the radius for a height. This implied that -moz-border-radius-bottomright was always drawing an arc of circle, and never an ellipse, when followed by a single value.
css.properties.border-bottom-right-radius 📋Chrome1/25/2010 Firefox3/22/2011421
Firefox: Before Firefox 50, border styles of rounded corners were always rendered as if border-style was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners were always rendered as if border-style was solid. This has been fixed in Firefox for Android 50.
css.properties.border-bottom-right-radius.elliptical_corners Chrome12/11/2008 Firefox6/30/2009201
css.properties.border-bottom-right-radius.percentages Chrome1/25/2010 Firefox3/22/2011421
Firefox: Before Firefox 4, the <percentage> was relative to the width of the box even when specifying the radius for a height. This implied that -moz-border-radius-bottomright was always drawing an arc of circle, and never an ellipse, when followed by a single value.
css.properties.border-bottom-style 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 50, border styles of rounded corners (with border-radius) were always rendered as if border-bottom-style was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners (with border-radius) were always rendered as if border-bottom-style was solid. This has been fixed in Firefox for Android 50.
css.properties.border-bottom-width 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-collapse 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-collapse.collapse Firefox1/7/2020 Chrome2/4/202028
css.properties.border-collapse.separate Firefox1/7/2020 Chrome2/4/202028
css.properties.border-color 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-end-end-radius 📋Firefox3/19/2019 Chrome3/2/2021714
css.properties.border-end-start-radius 📋Firefox3/19/2019 Chrome3/2/2021714
css.properties.border-image 📋Chrome12/13/2011 Firefox8/28/2012259
Chrome: Before Chrome 112, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).Chrome Android: Before Chrome Android 112, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).Edge: Before Edge 112, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).Firefox: Small SVGs are incorrectly stretched, because percentages in border-image-slice are computed to integers instead of floats (bug 1284797).Firefox: Until Firefox 47, SVGs without viewport were not sliced correctly (bug 619500).Firefox: From Firefox 48 until Firefox 49, SVGs without viewport are displayed the same as SVGs with viewport, but if the slices are not exactly 50%, they are incorrectly stretched (bug 1264809).Firefox: Until Firefox 57, an issue persisted for SVGs without viewport when e10s was disabled (bug 1290782).Firefox: Before Firefox 15, an earlier version of the specification was implemented, prefixed.Firefox for Android: Small SVGs are incorrectly stretched, because percentages in border-image-slice are computed to integers instead of floats (bug 1284797).Firefox for Android: Until Firefox for Android 47, SVGs without viewport were not sliced correctly (bug 619500).Firefox for Android: From Firefox for Android 48 until Firefox for Android 49, SVGs without viewport are displayed the same as SVGs with viewport, but if the slices are not exactly 50%, they are incorrectly stretched (bug 1264809).Firefox for Android: Until Firefox for Android 57, an issue persisted for SVGs without viewport when e10s was disabled (bug 1290782).Firefox for Android: Before Firefox for Android 15, an earlier version of the specification was implemented, prefixed.Quest Browser: Before Quest Browser false, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).Opera: Before Opera 98, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).Opera Android: A border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).Samsung Internet: Before Samsung Internet 23.0, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).WebView Android: Before WebView 112, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).
css.properties.border-image.fill Chrome12/13/2011 Firefox8/28/2012259
css.properties.border-image.gradient Chrome10/19/2010 Firefox4/29/20141288
css.properties.border-image.optional_border_image_slice Chrome12/13/2011 Firefox8/28/2012259
css.properties.border-image-outset 📋Chrome10/25/2011 Firefox8/28/2012308
css.properties.border-image-repeat 📋Chrome10/25/2011 Firefox8/28/2012308
css.properties.border-image-repeat.repeat 📋Chrome10/25/2011 Firefox1/7/20202996
css.properties.border-image-repeat.round 📋Firefox8/28/2012 Chrome10/1/2013399
css.properties.border-image-repeat.space 📋Firefox11/15/2016 Chrome1/25/201771
css.properties.border-image-repeat.stretch 📋Chrome10/25/2011 Firefox1/7/20202996
css.properties.border-image-slice 📋Chrome10/25/2011 Firefox8/28/2012308
Firefox: Small SVGs are incorrectly stretched, because percentages in border-image-slice are computed to integers instead of floats (bug 1284797).Firefox: Until Firefox 47, SVGs without viewport were not sliced correctly (bug 619500).Firefox: From Firefox 48 until Firefox 49, SVGs without viewport are displayed the same as SVGs with viewport, but if the slices are not exactly 50%, they are incorrectly stretched (bug 1264809).Firefox: Until Firefox 57, an issue persisted for SVGs without viewport when e10s was disabled (bug 1290782).Firefox for Android: Small SVGs are incorrectly stretched, because percentages in border-image-slice are computed to integers instead of floats (bug 1284797).Firefox for Android: Until Firefox for Android 47, SVGs without viewport were not sliced correctly (bug 619500).Firefox for Android: From Firefox for Android 48 until Firefox for Android 49, SVGs without viewport are displayed the same as SVGs with viewport, but if the slices are not exactly 50%, they are incorrectly stretched (bug 1264809).Firefox for Android: Until Firefox for Android 57, an issue persisted for SVGs without viewport when e10s was disabled (bug 1290782).
css.properties.border-image-source 📋Chrome10/25/2011 Firefox8/28/2012308
css.properties.border-image-width 📋Chrome12/13/2011 Firefox6/5/2012175
Chrome: Before Chrome 112, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).Chrome Android: Before Chrome Android 112, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).Edge: Before Edge 112, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).Quest Browser: Before Quest Browser false, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).Opera: Before Opera 98, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).Opera Android: Before Opera Android 75, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).Samsung Internet: Before Samsung Internet 23.0, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).WebView Android: Before WebView Android 112, a border image's absolute or percentage length width may not take precedence over a narrower border-width (bug 40541033).
css.properties.border-image-width.auto 📋Chrome12/13/2011 Firefox8/28/2012259
css.properties.border-inline 📋Firefox3/19/2019 Chrome11/17/2020609
css.properties.border-inline-color 📋Firefox3/19/2019 Chrome11/17/2020609
css.properties.border-inline-end 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-inline-end-color 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-inline-end-style 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-inline-end-width 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-inline-start 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-inline-start-color 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-inline-start-style 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-inline-start-width 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.border-inline-style 📋Firefox3/19/2019 Chrome11/17/2020609
css.properties.border-inline-width 📋Firefox3/19/2019 Chrome11/17/2020609
css.properties.border-left 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-left-color 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-left-style 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 50, border styles of rounded corners (with border-radius) were always rendered as if border-bottom-style was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox 50, border styles of rounded corners (with border-radius) were always rendered as if border-bottom-style was solid. This has been fixed in Firefox 50.
css.properties.border-left-width 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-radius 📋Chrome1/25/2010 Firefox3/22/2011421
Chrome: Chrome ignores border-radius on <select> elements unless -webkit-appearance is overridden to an appropriate value.Firefox: Before Firefox 50, border styles of rounded corners (with border-radius) were always rendered as if border-style was solid. This has been fixed in Firefox 50.Firefox: To conform to the CSS3 standard, Firefox 4 changes the handling of <percentage> values to match the specification. You can specify an ellipse as a border on an arbitrary sized element with border-radius: 50%;. Firefox 4 also makes rounded corners clip content and images if overflow: visible is not set.Firefox for Android: Before Firefox 50, border styles of rounded corners (with border-radius) were always rendered as if border-style was solid. This has been fixed in Firefox 50.Opera: Before Opera 11.60, replaced elements with border-radius do not have rounded corners.Safari: Safari ignores border-radius on <select> elements unless -webkit-appearance is overridden to an appropriate value.Safari on iOS: Safari ignores border-radius on <select> elements unless -webkit-appearance is overridden to an appropriate value.WebView on iOS: Safari ignores border-radius on <select> elements unless -webkit-appearance is overridden to an appropriate value.
css.properties.border-radius.4_values_for_4_corners Chrome1/25/2010 Firefox3/22/2011421
css.properties.border-radius.elliptical_borders Chrome12/11/2008 Firefox3/22/2011831
Chrome: Before Chrome 4, the slash / notation is unsupported. If two values are specified, then an elliptical border is drawn on all four corners. -webkit-border-radius: 40px 10px; is equivalent to border-radius: 40px / 10px;.Safari: Before Safari 5, the slash / notation is unsupported. If two values are specified, then an elliptical border is drawn on all four corners. -webkit-border-radius: 40px 10px; is equivalent to border-radius: 40px / 10px;.
css.properties.border-radius.percentages Chrome12/2/2010 Firefox3/22/2011110
Firefox: Before Firefox 4, <percentage> values are implemented in a non-standard way. Both horizontal and vertical radii were relative to the width of the border box.Opera: Before Opera 11.5, the implementation of <percentage> values was buggy.
css.properties.border-right 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-right-color 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-right-style 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 50, border styles of rounded corners (with border-radius) were always rendered as if border-bottom-style was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox 50, border styles of rounded corners (with border-radius) were always rendered as if border-bottom-style was solid. This has been fixed in Firefox 50.
css.properties.border-right-width 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-spacing 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-start-end-radius 📋Firefox3/19/2019 Chrome3/2/2021714
css.properties.border-start-start-radius 📋Firefox3/19/2019 Chrome3/2/2021714
css.properties.border-style 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 50, border styles of rounded corners were always rendered as if border-style was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners were always rendered as if border-style was solid. This has been fixed in Firefox for Android 50.
css.properties.border-style.dashed 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-style.dotted 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-style.double 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-style.groove 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-style.hidden 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-style.inset 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-style.none 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-style.outset 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-style.ridge 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-style.solid 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-top 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-top-color 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-top-left-radius 📋Chrome1/25/2010 Firefox3/22/2011421
Firefox: Before Firefox 50, border styles of rounded corners were always rendered as if border-style was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners were always rendered as if border-style was solid. This has been fixed in Firefox for Android 50.
css.properties.border-top-left-radius.elliptical_corners Chrome12/11/2008 Firefox6/30/2009201
css.properties.border-top-left-radius.percentages Chrome1/25/2010 Firefox3/22/2011421
Firefox: Before Firefox 4, the <percentage> was relative to the width of the box even when specifying the radius for a height. This implied that -moz-border-radius-bottomright was always drawing an arc of circle, and never an ellipse, when followed by a single value.
css.properties.border-top-right-radius 📋Chrome1/25/2010 Firefox3/22/2011421
Firefox: Before Firefox 50, border styles of rounded corners were always rendered as if border-style was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners were always rendered as if border-style was solid. This has been fixed in Firefox for Android 50.
css.properties.border-top-right-radius.elliptical_corners Chrome12/11/2008 Firefox6/30/2009201
css.properties.border-top-right-radius.percentages Chrome1/25/2010 Firefox3/22/2011421
Firefox: Before Firefox 4, the <percentage> was relative to the width of the box even when specifying the radius for a height. This implied that -moz-border-radius-bottomright was always drawing an arc of circle, and never an ellipse, when followed by a single value.
css.properties.border-top-style 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 50, border styles of rounded corners (with border-radius) were always rendered as if border-top-style was solid. This has been fixed in Firefox 50.Firefox for Android: Before Firefox for Android 50, border styles of rounded corners (with border-radius) were always rendered as if border-top-style was solid. This has been fixed in Firefox for Android 50.
css.properties.border-top-width 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.border-width 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.bottom 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: In Internet Explorer versions before 7, when both top and bottom are specified, the element position is overconstrained and the top property has precedence; the computed value of bottom is set to -top, while its specified value is ignored.
css.properties.bottom.auto 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.box-align Chrome12/11/2008 Firefox9/20/20162840
css.properties.box-decoration-break 📋Firefox9/2/2014 Chrome10/15/20243696
Chrome: This property is only supported for inline elements.Chrome Android: This property is only supported for inline elements.Edge: This property is only supported for inline elements.Quest Browser: This property is only supported for inline elements.Safari: This property is only supported for inline elements.Safari on iOS: This property is only supported for inline elements.Samsung Internet: This property is only supported for inline elements.WebView Android: This property is only supported for inline elements.WebView on iOS: This property is only supported for inline elements.
css.properties.box-decoration-break.clone 📋Firefox9/2/2014 Chrome10/15/20243696
Chrome: This value was only supported with the -webkit- prefix.Chrome Android: This value was only supported with the -webkit- prefix.Edge: This value was only supported with the -webkit- prefix.Quest Browser: This value was only supported with the -webkit- prefix.Opera: This value was only supported with the -webkit- prefix.Opera Android: This value was only supported with the -webkit- prefix.Samsung Internet: This value was only supported with the -webkit- prefix.WebView Android: This value was only supported with the -webkit- prefix.
css.properties.box-decoration-break.slice 📋Firefox9/2/2014 Chrome10/15/20243696
Chrome: This value was only supported with the -webkit- prefix.Chrome Android: This value was only supported with the -webkit- prefix.Edge: This value was only supported with the -webkit- prefix.Quest Browser: This value was only supported with the -webkit- prefix.Opera: This value was only supported with the -webkit- prefix.Opera Android: This value was only supported with the -webkit- prefix.Samsung Internet: This value was only supported with the -webkit- prefix.WebView Android: This value was only supported with the -webkit- prefix.
css.properties.box-direction Chrome12/11/2008 Firefox9/20/20162840
css.properties.box-flex Chrome12/11/2008 Firefox9/20/20162840
css.properties.box-ordinal-group Chrome12/11/2008 Firefox9/20/20162840
css.properties.box-orient Chrome12/11/2008 Firefox9/20/20162840
css.properties.box-pack Chrome12/11/2008 Firefox9/20/20162840
css.properties.box-shadow 📋Chrome3/8/2011 Firefox3/22/201114
Chrome: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a width of 100%, then you'll see a scrollbar.Chrome Android: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a width of 100%, then you'll see a scrollbar.Firefox: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a width of 100%, then you'll see a scrollbar.Firefox for Android: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a width of 100%, then you'll see a scrollbar.Internet Explorer: To use box-shadow in Internet Explorer 9 or later, you must set border-collapse to separate.Internet Explorer: Since version 5.5, Internet Explorer supports Microsoft's DropShadow and Shadow Filter. You can use this proprietary extension to cast a drop shadow (though the syntax and the effect are different from CSS3)Quest Browser: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a width of 100%, then you'll see a scrollbar.Opera: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a width of 100%, then you'll see a scrollbar.Opera Android: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a width of 100%, then you'll see a scrollbar.Safari: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a width of 100%, then you'll see a scrollbar.Safari on iOS: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a width of 100%, then you'll see a scrollbar.Samsung Internet: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a width of 100%, then you'll see a scrollbar.WebView Android: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a width of 100%, then you'll see a scrollbar.WebView on iOS: Shadows affect layout in this browser. For example, if you cast an outer shadow to a box with a width of 100%, then you'll see a scrollbar.
css.properties.box-shadow.inset Chrome12/11/2008 Firefox6/30/2009201
Internet Explorer: inset must be the last keyword in the declaration.
css.properties.box-shadow.multiple_shadows Chrome12/11/2008 Firefox6/30/2009201
css.properties.box-shadow.spread_radius Chrome12/11/2008 Firefox6/30/2009201
css.properties.box-sizing 📋Chrome3/8/2011 Firefox4/29/20141148
Chrome: box-sizing is not respected when the height is calculated from window.getComputedStyle().Chrome Android: box-sizing is not respected when the height is calculated from window.getComputedStyle().Firefox: Before Firefox 23, box-sizing is not respected when the height is calculated from window.getComputedStyle().Firefox for Android: Before Firefox for Android 23, box-sizing is not respected when the height is calculated from window.getComputedStyle().Internet Explorer: box-sizing is not respected when the height is calculated from window.getComputedStyle().Quest Browser: box-sizing is not respected when the height is calculated from window.getComputedStyle().Opera Android: box-sizing is not respected when the height is calculated from window.getComputedStyle().Samsung Internet: box-sizing is not respected when the height is calculated from window.getComputedStyle().WebView Android: box-sizing is not respected when the height is calculated from window.getComputedStyle().
css.properties.box-sizing.border-box 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.box-sizing.content-box 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.break-after 📋Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-after.auto Firefox1/7/2020 Chrome2/4/202028
css.properties.break-after.avoid Firefox1/7/2020 Chrome2/4/202028
css.properties.break-after.left Firefox1/7/2020 Chrome2/4/202028
css.properties.break-after.multicol_context 📋Chrome4/13/2016 Firefox1/29/20191021
Firefox: Only supported in print mode. See bug 1675322.Firefox for Android: Only supported in print mode. See bug 1675322.
css.properties.break-after.page Firefox1/7/2020 Chrome2/4/202028
css.properties.break-after.paged_context 📋Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-after.paged_context.page Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-after.right Firefox1/7/2020 Chrome2/4/202028
css.properties.break-before 📋Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-before.auto Firefox1/7/2020 Chrome2/4/202028
css.properties.break-before.avoid Firefox1/7/2020 Chrome2/4/202028
css.properties.break-before.left Firefox1/7/2020 Chrome2/4/202028
css.properties.break-before.multicol_context 📋Chrome4/13/2016 Firefox1/29/20191021
Firefox: Only supported in print mode. See bug 1675322.Firefox for Android: Only supported in print mode. See bug 1675322.
css.properties.break-before.page Firefox1/7/2020 Chrome2/4/202028
css.properties.break-before.paged_context 📋Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-before.paged_context.page Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-before.right Firefox1/7/2020 Chrome2/4/202028
css.properties.break-inside 📋Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-inside.auto Firefox1/7/2020 Chrome2/4/202028
css.properties.break-inside.avoid Firefox1/7/2020 Chrome2/4/202028
css.properties.break-inside.avoid-column Chrome2/4/2020 Firefox9/7/2021581
css.properties.break-inside.avoid-page Chrome2/4/2020 Firefox9/7/2021581
css.properties.break-inside.multicol_context 📋Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-inside.multicol_context.avoid-column Chrome4/13/2016 Firefox9/7/20211973
css.properties.break-inside.paged_context 📋Chrome4/13/2016 Firefox1/29/20191021
css.properties.break-inside.paged_context.avoid-page Chrome5/25/2016 Firefox9/7/20211931
css.properties.caption-side 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.caption-side.bottom Firefox1/7/2020 Chrome2/4/202028
css.properties.caption-side.top Firefox1/7/2020 Chrome2/4/202028
css.properties.caret-color 📋Chrome3/9/2017 Firefox4/19/201741
css.properties.clear 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.clear.both 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.clear.inline-end 📋Firefox8/8/2017 Chrome10/10/20232254
css.properties.clear.inline-start 📋Firefox8/8/2017 Chrome10/10/20232254
css.properties.clear.left 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.clear.right 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.clip 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Before Internet Explorer 7, Internet Explorer incorrectly interprets clip: auto as clip: rect(auto, auto, auto, auto).Safari: Safari incorrectly interprets clip: auto as clip: rect(auto, auto, auto, auto).Safari on iOS: Safari on iOS incorrectly interprets clip: auto as clip: rect(auto, auto, auto, auto).WebView on iOS: WebView on iOS incorrectly interprets clip: auto as clip: rect(auto, auto, auto, auto).
css.properties.clip.auto Firefox1/7/2020 Chrome2/4/202028
css.properties.clip-path 📋Firefox6/30/2009 Chrome12/1/20162711
Edge: Only supports clip paths defined by url().Internet Explorer: Only supports clip paths defined by url().
css.properties.clip-path.basic_shape 📋Chrome11/6/2012 Firefox6/13/20171680
css.properties.clip-path.fill-box 📋Firefox1/24/2017 Chrome10/31/20232471
Firefox: This value was supported before Firefox 51, but as an alias to border-box.Firefox for Android: This value was supported before Firefox for Android 51, but as an alias to border-box.
css.properties.clip-path.html_elements Firefox6/30/2009 Chrome11/6/20121225
css.properties.clip-path.is_animatable Firefox9/20/2016 Chrome12/1/201672
css.properties.clip-path.path Firefox12/10/2019 Chrome1/19/2021406
css.properties.clip-path.stroke-box 📋Firefox1/24/2017 Chrome10/31/20232471
Firefox: This value was supported before Firefox 51, but as an alias to border-box.Firefox for Android: This value was supported before Firefox for Android 51, but as an alias to border-box.
css.properties.clip-path.svg_elements Chrome11/6/2012 Firefox3/7/20171582
css.properties.clip-path.view-box 📋Firefox1/7/2020 Chrome10/31/20231393
css.properties.clip-rule 📋Firefox6/30/2009 Chrome10/25/2011847
css.properties.clip-rule.evenodd 📋Firefox6/30/2009 Chrome10/25/2011847
css.properties.clip-rule.nonzero 📋Firefox6/30/2009 Chrome10/25/2011847
css.properties.color 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.color-interpolation 📋Firefox1/7/2020 Chrome2/4/202028
Chrome: Only the default value of sRGB is implementedChrome Android: Only the default value of sRGB is implementedEdge: Only the default value of sRGB is implementedQuest Browser: Only the default value of sRGB is implementedOpera: Only the default value of sRGB is implementedOpera Android: Only the default value of sRGB is implementedSafari: Only the default value of sRGB is implementedSafari on iOS: Only the default value of sRGB is implementedSamsung Internet: Only the default value of sRGB is implementedWebView Android: Only the default value of sRGB is implementedWebView on iOS: Only the default value of sRGB is implemented
css.properties.color-interpolation.sRGB Firefox1/7/2020 Chrome2/4/202028
css.properties.color-interpolation-filters 📋Firefox6/17/2008 Chrome12/11/2008177
css.properties.color-interpolation-filters.auto 📋Firefox6/17/2008 Chrome12/11/2008177
css.properties.color-interpolation-filters.linearRGB 📋Firefox6/25/2013 Chrome7/9/201314
css.properties.color-interpolation-filters.sRGB 📋Firefox6/25/2013 Chrome7/9/201314
css.properties.color-scheme 📋Chrome4/7/2020 Firefox1/11/2022644
css.properties.color-scheme.dark Chrome4/7/2020 Firefox1/11/2022644
css.properties.color-scheme.light Chrome4/7/2020 Firefox1/11/2022644
css.properties.color-scheme.normal Chrome4/7/2020 Firefox1/11/2022644
css.properties.color-scheme.only_dark Firefox1/11/2022 Chrome2/1/202221
css.properties.color-scheme.only_light Firefox1/11/2022 Chrome2/1/202221
css.properties.column-count 📋Chrome4/13/2016 Firefox3/7/2017328
Firefox: Before version 37, multiple columns didn't work with display: table-caption elements.Firefox for Android: Before version 37, multiple columns didn't work with display: table-caption elements.
css.properties.column-count.auto 📋Firefox11/29/2005 Chrome12/11/20081108
css.properties.column-fill 📋Chrome4/13/2016 Firefox3/7/2017328
css.properties.column-fill.auto 📋Firefox11/20/2012 Chrome4/13/20161240
css.properties.column-fill.balance 📋Firefox11/20/2012 Chrome4/13/20161240
css.properties.column-gap 📋Firefox11/29/2005 Chrome12/11/20081108
css.properties.column-gap.flex_context 📋Firefox10/23/2018 Chrome7/27/2020643
css.properties.column-gap.grid_context 📋Chrome4/17/2018 Firefox6/26/201870
css.properties.column-gap.multicol_context 📋Chrome4/13/2016 Firefox3/7/2017328
Firefox: Before Firefox 3, the default value for the normal keyword was 0 and not 1em.
css.properties.column-gap.multicol_context.calc_values Chrome4/17/2018 Firefox6/26/201870
css.properties.column-gap.multicol_context.percentage_values Chrome4/17/2018 Firefox6/26/201870
css.properties.column-rule 📋Chrome4/13/2016 Firefox3/7/2017328
Firefox: Before Firefox 3, the default value for the normal keyword was 0 and not 1em.
css.properties.column-rule-color 📋Chrome4/13/2016 Firefox3/7/2017328
css.properties.column-rule-style 📋Chrome4/13/2016 Firefox3/7/2017328
css.properties.column-rule-width 📋Chrome4/13/2016 Firefox3/7/2017328
css.properties.column-span 📋Chrome4/13/2016 Firefox12/10/20191336
css.properties.column-span.all 📋Chrome9/2/2010 Firefox12/10/20193386
css.properties.column-span.none 📋Chrome9/2/2010 Firefox12/10/20193386
css.properties.column-width 📋Chrome4/13/2016 Firefox11/15/2016216
Firefox: Before version 37, multiple columns didn't work with display: table-caption elements.Firefox for Android: Before version 37, multiple columns didn't work with display: table-caption elements.
css.properties.column-width.auto Firefox11/29/2005 Chrome12/11/20081108
css.properties.columns 📋Chrome4/13/2016 Firefox3/7/2017328
Firefox: Before version 37, multiple columns didn't work with display: table-caption elements.Firefox for Android: Before version 37, multiple columns didn't work with display: table-caption elements.
css.properties.contain 📋Chrome7/20/2016 Firefox9/3/20191140
css.properties.contain.content 📋Chrome7/20/2016 Firefox9/3/20191140
css.properties.contain.inline-size 📋Firefox5/31/2022 Chrome9/2/202294
css.properties.contain.layout 📋Chrome7/20/2016 Firefox9/3/20191140
css.properties.contain.none 📋Chrome7/20/2016 Firefox9/3/20191140
css.properties.contain.paint 📋Chrome7/20/2016 Firefox9/3/20191140
css.properties.contain.size 📋Chrome7/20/2016 Firefox9/3/20191140
css.properties.contain.strict 📋Chrome7/20/2016 Firefox9/3/20191140
css.properties.contain.style 📋Chrome7/20/2016 Firefox7/26/20222197
Chrome: Before Chrome 115, style containment did not affect quotes, see bug 40592922.Chrome Android: Before Chrome Android 115, style containment did not affect quotes, see bug 40592922.Edge: Before Edge 115, style containment did not affect quotes, see bug 40592922.Quest Browser: Before Quest Browser false, style containment did not affect quotes, see bug 40592922.Opera: Before Opera 101, style containment did not affect quotes, see bug 40592922.Opera Android: Before Opera Android 77, style containment did not affect quotes, see bug 40592922.Safari: Style containment does not affect quotes, see bug 232083.Safari on iOS: Style containment does not affect quotes, see bug 232083.Samsung Internet: Before Samsung Internet 23.0, style containment did not affect quotes, see bug 40592922.WebView Android: Before WebView Android 115, style containment did not affect quotes, see bug 40592922.WebView on iOS: Style containment does not affect quotes, see bug 232083.
css.properties.contain-intrinsic-block-size 📋Chrome10/19/2021 Firefox11/15/2022392
css.properties.contain-intrinsic-block-size.none 📋Chrome2/1/2022 Firefox11/15/2022287
css.properties.contain-intrinsic-height 📋Chrome10/19/2021 Firefox11/15/2022392
css.properties.contain-intrinsic-height.none 📋Chrome2/1/2022 Firefox11/15/2022287
css.properties.contain-intrinsic-inline-size 📋Chrome10/19/2021 Firefox11/15/2022392
css.properties.contain-intrinsic-inline-size.none 📋Chrome2/1/2022 Firefox11/15/2022287
css.properties.contain-intrinsic-size 📋Chrome5/19/2020 Firefox11/15/2022910
css.properties.contain-intrinsic-size.auto_none Firefox8/29/2023 Chrome9/12/202314
css.properties.contain-intrinsic-size.none 📋Chrome2/1/2022 Firefox11/15/2022287
css.properties.contain-intrinsic-width 📋Chrome10/19/2021 Firefox11/15/2022392
css.properties.contain-intrinsic-width.none 📋Chrome2/1/2022 Firefox11/15/2022287
css.properties.container 📋Chrome9/2/2022 Firefox2/14/2023165
css.properties.container-name 📋Chrome9/2/2022 Firefox2/14/2023165
css.properties.container-name.none 📋Chrome9/2/2022 Firefox2/14/2023165
css.properties.container-type 📋Chrome9/2/2022 Firefox2/14/2023165
css.properties.container-type.inline-size 📋Chrome9/2/2022 Firefox2/14/2023165
css.properties.container-type.normal 📋Chrome9/2/2022 Firefox2/14/2023165
css.properties.container-type.size 📋Chrome9/2/2022 Firefox2/14/2023165
css.properties.content 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.content.alt_text Chrome9/10/2019 Firefox7/9/20241764
css.properties.content.element_replacement Chrome7/9/2013 Firefox10/23/20181932
css.properties.content.gradient 📋Chrome3/26/2013 Firefox5/9/20233696
Firefox: content: <gradient> doesn't paint on ::before/::after pseudo elements. See bug 1832901.Firefox for Android: content: <gradient> doesn't paint on ::before/::after pseudo elements. See bug 1832901.
css.properties.content.image-set 📋Firefox6/1/2021 Chrome5/2/2023700
Chrome: Support for url images only and x is the only supported resolution unit.Chrome Android: Support for url images only and x is the only supported resolution unit.Edge: Support for url images only and x is the only supported resolution unit.Firefox: The type() function is not supported as an argument to image-set().Firefox for Android: The type() function is not supported as an argument to image-set().Quest Browser: Support for url images only and x is the only supported resolution unit.Opera: Support for url images only and x is the only supported resolution unit.Opera Android: Support for url images only and x is the only supported resolution unit.Safari: The type() function is not supported as an argument to image-set().Safari: The type() function is not supported as an argument to image-set().Safari: Support for url images only and x is the only supported resolution unit.Safari: Support for url images only and x is the only supported resolution unit.Safari on iOS: The type() function is not supported as an argument to image-set().Safari on iOS: The type() function is not supported as an argument to image-set().Safari on iOS: Support for url images only and x is the only supported resolution unit.Safari on iOS: Support for url images only and x is the only supported resolution unit.Samsung Internet: Support for url images only and x is the only supported resolution unit.WebView Android: Support for url images only and x is the only supported resolution unit.WebView on iOS: The type() function is not supported as an argument to image-set().WebView on iOS: The type() function is not supported as an argument to image-set().WebView on iOS: Support for url images only and x is the only supported resolution unit.WebView on iOS: Support for url images only and x is the only supported resolution unit.
css.properties.content.none 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.content.normal 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.content.url 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.content-visibility 📋Chrome8/25/2020 Firefox4/16/20241330
css.properties.content-visibility.auto 📋Chrome8/25/2020 Firefox4/16/20241330
Safari: Skipped content is not findable via find-in-page.Safari on iOS: Skipped content is not findable via find-in-page.WebView on iOS: Skipped content is not findable via find-in-page.
css.properties.content-visibility.hidden 📋Chrome8/25/2020 Firefox4/16/20241330
css.properties.content-visibility.visible 📋Chrome8/25/2020 Firefox4/16/20241330
css.properties.counter-increment 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.counter-increment.list-item 📋Firefox11/9/2004 Chrome7/9/20133164
css.properties.counter-increment.none 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.counter-reset 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.counter-reset.list-item 📋Firefox11/9/2004 Chrome7/9/20133164
Chrome: Overriding the initial value of the implicit list-item counter has no effect when the default marker string for list items (::marker) is generated; see bug 338233131.Chrome Android: Overriding the initial value of the implicit list-item counter has no effect when the default marker string for list items (::marker) is generated; see bug 338233131.Quest Browser: Overriding the initial value of the implicit list-item counter has no effect when the default marker string for list items (::marker) is generated; see bug 338233131.Opera: Overriding the initial value of the implicit list-item counter has no effect when the default marker string for list items (::marker) is generated; see bug 338233131.Opera Android: Overriding the initial value of the implicit list-item counter has no effect when the default marker string for list items (::marker) is generated; see bug 338233131.Safari: Overriding the initial value of the implicit list-item counter results in incorrect values for the counter() function used to generate content, as it is not fully implemented; see bug 260436.Safari on iOS: Overriding the initial value of the implicit list-item counter results in incorrect values for the counter() function used to generate content, as it is not fully implemented; see bug 260436.Samsung Internet: Overriding the initial value of the implicit list-item counter has no effect when the default marker string for list items (::marker) is generated; see bug 338233131.WebView Android: Overriding the initial value of the implicit list-item counter has no effect when the default marker string for list items (::marker) is generated; see bug 338233131.WebView on iOS: Overriding the initial value of the implicit list-item counter results in incorrect values for the counter() function used to generate content, as it is not fully implemented; see bug 260436.
css.properties.counter-reset.none 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.counter-set 📋Firefox7/9/2019 Chrome8/25/2020413
css.properties.counter-set.list-item 📋Firefox7/9/2019 Chrome8/25/2020413
css.properties.counter-set.none 📋Firefox7/9/2019 Chrome8/25/2020413
css.properties.cursor 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Starting in Firefox 67, the maximum size allowed for custom cursors is 32x32 pixels due to cursors being misused by certain malicious sites.Internet Explorer: In Internet Explorer 11, when cursor is applied to an element and this element is underneath an open <select> menu and the user hovers over a <select> menu item that's on top of said element, the cursor for said element will be displayed rather than the <select>'s normal cursor. See bug 817822.Safari on iOS: This property is only supported on iPads with an external pointing device.Safari on iOS: Unsupported values use the default pointer as a fallback.WebView on iOS: This property is only supported on iPads with an external pointing device.WebView on iOS: Unsupported values use the default pointer as a fallback.
css.properties.cursor.alias 📋Firefox11/29/2005 Chrome12/11/20081108
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.all-scroll 📋Firefox11/29/2005 Chrome12/11/20081108
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.auto 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.cursor.cell 📋Firefox11/29/2005 Chrome12/11/20081108
css.properties.cursor.col-resize 📋Firefox11/29/2005 Chrome12/11/20081108
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.context-menu 📋Firefox11/29/2005 Chrome12/11/20081108
Chrome: This cursor is only supported on macOS and Linux.Chrome Android: This cursor is only supported on macOS and Linux.Firefox: This cursor is only supported on macOS and Linux.Quest Browser: This cursor is only supported on macOS and Linux.Opera Android: This cursor is only supported on macOS and Linux.Safari on iOS: If this value is used, the iPad will display the default pointer instead.Samsung Internet: This cursor is only supported on macOS and Linux.WebView Android: This cursor is only supported on macOS and Linux.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.copy 📋Firefox11/29/2005 Chrome12/11/20081108
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.crosshair 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.default 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.e-resize 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.ew-resize 📋Firefox11/29/2005 Chrome12/11/20081108
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.grab Firefox2/4/2014 Chrome7/24/20181631
Chrome: Chrome also continues to support the prefixed versions.Chrome: Chrome 22 added Windows support.Chrome Android: Chrome Android also continues to support the prefixed versions.Chrome Android: Chrome Android 25 added Windows support.Quest Browser: Quest Browser also continues to support the prefixed versions.Quest Browser: Quest Browser 5.0 added Windows support.Opera: Opera also continues to support the prefixed versions.Opera: Opera 22 added Windows support.Opera Android: Opera also continues to support the prefixed versions.Opera Android: Opera 22 added Windows support.Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView Android: WebView Android also continues to support the prefixed versions.WebView Android: WebView Android 4.4 added Windows support.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.grabbing 📋Firefox2/4/2014 Chrome7/24/20181631
Chrome: Chrome 22 added Windows support.Chrome Android: Chrome Android 25 added Windows support.Edge: Edge 79 added Windows support.Quest Browser: Quest Browser 5.0 added Windows support.Opera: Opera 15 added Windows support.Opera Android: Opera Android 14 added Windows support.Safari on iOS: If this value is used, the iPad will display the default pointer instead.Samsung Internet: Samsung Internet 1.5 added Windows support.WebView Android: WebView Android 4.4 added Windows support.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.help 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.move 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.n-resize 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.ne-resize 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.nesw-resize 📋Firefox11/29/2005 Chrome12/11/20081108
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.no-drop 📋Firefox11/29/2005 Chrome12/11/20081108
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.none 📋Firefox6/17/2008 Chrome5/25/2010707
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.not-allowed 📋Firefox11/29/2005 Chrome12/11/20081108
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.ns-resize 📋Firefox11/29/2005 Chrome12/11/20081108
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.nw-resize 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.nwse-resize 📋Firefox11/29/2005 Chrome12/11/20081108
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.pointer 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.progress 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.row-resize 📋Firefox11/29/2005 Chrome12/11/20081108
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.s-resize 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.se-resize 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.sw-resize 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.text 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.cursor.url Firefox11/29/2005 Chrome12/11/20081108
Firefox: Firefox 4 added macOS support.
css.properties.cursor.url_positioning_syntax Firefox11/29/2005 Chrome12/11/20081108
Firefox: Firefox 4 added macOS support.Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.vertical-text 📋Firefox11/29/2005 Chrome12/11/20081108
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.w-resize 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.wait 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.zoom-in 📋Firefox9/17/2013 Chrome8/26/2014343
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.cursor.zoom-out 📋Firefox9/17/2013 Chrome8/26/2014343
Safari on iOS: If this value is used, the iPad will display the default pointer instead.WebView on iOS: If this value is used, the iPad will display the default pointer instead.
css.properties.custom-property 📋Firefox7/22/2014 Chrome3/2/2016589
css.properties.custom-property.env 📋Chrome9/4/2018 Firefox1/29/2019147
css.properties.custom-property.env.safe-area-inset-bottom 📋Chrome9/4/2018 Firefox1/29/2019147
css.properties.custom-property.env.safe-area-inset-left 📋Chrome9/4/2018 Firefox1/29/2019147
css.properties.custom-property.env.safe-area-inset-right 📋Chrome9/4/2018 Firefox1/29/2019147
css.properties.custom-property.env.safe-area-inset-top 📋Chrome9/4/2018 Firefox1/29/2019147
css.properties.custom-property.var 📋Firefox7/22/2014 Chrome3/2/2016589
css.properties.cx 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.cy 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.d 📋Chrome2/4/2020 Firefox2/8/2022735
Safari: The property parses, but has no effect.Safari on iOS: The property parses, but has no effect.WebView on iOS: The property parses, but has no effect.
css.properties.direction 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.direction.ltr 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.direction.rtl 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.direction.vertical_slider_direction Firefox11/21/2023 Chrome4/16/2024147
Firefox: Only supported for vertical range sliders.Firefox for Android: Only supported for vertical range sliders.Safari: Only supported for vertical range sliders.Safari on iOS: Only supported for vertical range sliders.WebView on iOS: Only supported for vertical range sliders.
css.properties.display 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.display.block 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.display.contents 📋Firefox3/31/2015 Chrome3/6/20181071
css.properties.display.contents.contents_unusual Chrome3/6/2018 Firefox3/13/20187
css.properties.display.flex Firefox4/2/2013 Chrome8/20/2013140
Firefox: Firefox 28 added multi-line flexbox support.Firefox for Android: Firefox for Android 28 added multi-line flexbox support.Internet Explorer: IE incorrectly positions inline block content inside flex containers. See the discussion on Microsoft Answers.Internet Explorer: IE incorrectly positions inline block content inside flex containers. See the discussion on Microsoft Answers.
css.properties.display.flow-root Chrome4/19/2017 Firefox4/19/2017
css.properties.display.grid Firefox3/7/2017 Chrome3/9/20172
Internet Explorer: Internet Explorer implements an older version of the specification.Samsung Internet: Samsung Internet added this earlier than the corresponding Chrome version would indicate.
css.properties.display.inline 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.display.inline-block Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Until Internet Explorer 8, inline-block is only for natural inline elements.
css.properties.display.inline-flex Firefox4/2/2013 Chrome8/20/2013140
Firefox: Firefox 28 added multi-line flexbox support.Firefox for Android: Firefox for Android 28 added multi-line flexbox support.
css.properties.display.inline-grid Firefox3/7/2017 Chrome3/9/20172
Internet Explorer: Internet Explorer implements an older version of the specification.Samsung Internet: Samsung Internet added this earlier than the corresponding Chrome version would indicate.
css.properties.display.inline-table Firefox6/17/2008 Chrome12/11/2008177
css.properties.display.list-item 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.display.list-item.legend-support Chrome12/4/2018 Firefox12/11/20187
css.properties.display.multi-keyword_values Firefox10/22/2019 Chrome7/18/20231365
css.properties.display.none 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Chrome 65 stopped creating layout objects for elements inside an <iframe> with display:none applied.Chrome Android: Chrome Android 65 stopped creating layout objects for elements inside an <iframe> with display:none applied.Quest Browser: Quest Browser 5.0 stopped creating layout objects for elements inside an <iframe> with display:none applied.Opera: Opera 52 stopped creating layout objects for elements inside an <iframe> with display:none applied.Opera Android: Opera Android 47 stopped creating layout objects for elements inside an <iframe> with display:none applied.Samsung Internet: Chrome 65 stopped creating layout objects for elements inside an <iframe> with display:none applied.WebView Android: WebView Android 65 stopped creating layout objects for elements inside an <iframe> with display:none applied.
css.properties.display.none.option_is_hidden Firefox11/9/2004 Chrome12/11/20081493
css.properties.display.ruby Firefox5/12/2015 Chrome1/23/20243178
css.properties.display.ruby-text Firefox5/12/2015 Chrome1/23/20243178
css.properties.display.table Firefox11/9/2004 Chrome12/11/20081493
css.properties.display.table-caption Firefox11/9/2004 Chrome2/4/20205565
css.properties.display.table-cell Firefox11/9/2004 Chrome12/11/20081493
css.properties.display.table-column Firefox11/9/2004 Chrome12/11/20081493
css.properties.display.table-column-group Firefox11/9/2004 Chrome12/11/20081493
css.properties.display.table-footer-group Firefox11/9/2004 Chrome12/11/20081493
css.properties.display.table-header-group Firefox11/9/2004 Chrome12/11/20081493
css.properties.display.table-row Firefox11/9/2004 Chrome12/11/20081493
css.properties.display.table-row-group Firefox11/9/2004 Chrome12/11/20081493
css.properties.dominant-baseline 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.dominant-baseline.alphabetic 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.dominant-baseline.auto 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.dominant-baseline.central 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.dominant-baseline.hanging 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.dominant-baseline.ideographic 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.dominant-baseline.mathematical 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.dominant-baseline.middle 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.empty-cells 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.fill 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.fill-opacity 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.fill-rule 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.fill-rule.evenodd 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.fill-rule.nonzero 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.filter 📋Firefox1/13/2015 Chrome8/31/2016596
Chrome: In Chrome 18 to 19, the saturate() function only takes integers instead of decimal or percentage values. From Chrome 20, this bug is fixed.Internet Explorer: Internet Explorer 4 to 9 implemented a non-standard filter property. The syntax was completely different from this one and is not documented here.
css.properties.filter.svg_elements Firefox1/13/2015 Chrome3/2/20212240
css.properties.flex 📋Firefox4/2/2013 Chrome8/20/2013140
Firefox: Since Firefox 28, multi-line flexbox is supported.Firefox: Before Firefox 32, Firefox wasn't able to animate values starting or stopping at 0.Firefox: Until Firefox 61, flex items that are sized according to their content are sized using fit-content, not max-content.Firefox for Android: Since Firefox for Android 28, multi-line flexbox is supported.Firefox for Android: Before Firefox for Android 32, Firefox for Android wasn't able to animate values starting or stopping at 0.Firefox for Android: Until Firefox for Android 61, flex items that are sized according to their content are sized using fit-content, not max-content.Internet Explorer: Internet Explorer 11 ignores uses of calc() in the flex-basis part of the flex syntax. This can be worked around by using the longhand properties instead of the shorthand. See Flexbug #8 for more info.Internet Explorer: Internet Explorer 11 considers a unitless value in the flex-basis part to be syntactically invalid (and will thus be ignored). A workaround is to always include a unit in the flex-basis part of the flex shorthand value. See Flexbug #4 for more info.Internet Explorer: Internet Explorer 10 and 11 ignore uses of calc() in the flex-basis part of the flex syntax. This can be worked around by using the longhand properties instead of the shorthand. See Flexbug #8 for more info.Internet Explorer: Internet Explorer 10 and 11 consider a unitless value in the flex-basis part to be syntactically invalid (and will thus be ignored). A workaround is to always include a unit in the flex-basis part of the flex shorthand value. See Flexbug #4 for more info.
css.properties.flex.none 📋Chrome7/31/2012 Firefox1/7/20202716
css.properties.flex-basis 📋Firefox6/25/2013 Chrome8/20/201356
Firefox: Since Firefox 28, multi-line flexbox is supported.Firefox for Android: Since Firefox for Android 28, multi-line flexbox is supported.Internet Explorer: When a non-auto flex-basis is specified, Internet Explorer 10 and 11 always uses a content-box box model to calculate the size of a flex item, even if box-sizing: border-box is applied to the element. See Flexbug #7 for more info.
css.properties.flex-basis.auto Chrome9/25/2012 Firefox6/25/2013273
css.properties.flex-basis.content Firefox6/26/2018 Chrome9/21/20211183
css.properties.flex-basis.fit-content Chrome9/21/2021 Firefox11/2/202142
css.properties.flex-basis.max-content Firefox3/19/2019 Chrome9/21/2021917
css.properties.flex-basis.min-content Firefox3/19/2019 Chrome9/21/2021917
css.properties.flex-direction 📋Firefox4/2/2013 Chrome8/20/2013140
Firefox: Since Firefox 28, multi-line flexbox is supported.Firefox for Android: Since Firefox for Android 28, multi-line flexbox is supported.
css.properties.flex-direction.column 📋Chrome7/31/2012 Firefox1/7/20202716
css.properties.flex-direction.column-reverse 📋Chrome7/31/2012 Firefox9/22/20202975
Firefox: Before Firefox 81, overflow with column-reverse was unsupported. See bug 1042151.Firefox for Android: Before Firefox for Android 81, overflow with column-reverse was unsupported. See bug 1042151.
css.properties.flex-direction.row 📋Chrome7/31/2012 Firefox1/7/20202716
css.properties.flex-direction.row-reverse 📋Chrome7/31/2012 Firefox9/22/20202975
Firefox: Before Firefox 81, overflow with column-reverse was unsupported. See bug 1042151.Firefox for Android: Before Firefox for Android 81, overflow with column-reverse was unsupported. See bug 1042151.
css.properties.flex-flow 📋Chrome8/20/2013 Firefox3/18/2014210
css.properties.flex-grow 📋Firefox4/2/2013 Chrome8/20/2013140
Firefox: Since Firefox 28, multi-line flexbox is supported.Firefox for Android: Since Firefox for Android 28, multi-line flexbox is supported.
css.properties.flex-grow.less_than_zero_animate Firefox9/2/2014 Chrome3/2/2016547
Firefox: Before Firefox 32, Firefox wasn't able to animate values starting or stopping at 0.Firefox for Android: Before Firefox for Android 32, Firefox for Android wasn't able to animate values starting or stopping at 0.
css.properties.flex-shrink 📋Firefox4/2/2013 Chrome8/20/2013140
Firefox: Since Firefox 28, multi-line flexbox is supported.Firefox: Before Firefox 32, Firefox wasn't able to animate values starting or stopping at 0.Firefox for Android: Since Firefox for Android 28, multi-line flexbox is supported.Firefox for Android: Before Firefox for Android 32, Firefox for Android wasn't able to animate values starting or stopping at 0.Internet Explorer: Internet Explorer 10 uses 0 instead of 1 as the initial value for the flex-shrink property. A workaround is to always set an explicit value for flex-shrink. See Flexbug #6 for more info.
css.properties.flex-wrap 📋Chrome8/20/2013 Firefox3/18/2014210
Internet Explorer: Partial support due to large number of bugs present. See Flexbugs.
css.properties.flex-wrap.nowrap 📋Chrome7/31/2012 Firefox3/18/2014595
css.properties.flex-wrap.wrap 📋Chrome7/31/2012 Firefox3/18/2014595
css.properties.flex-wrap.wrap-reverse 📋Chrome7/31/2012 Firefox3/18/2014595
css.properties.float 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.float.inline-end 📋Firefox8/8/2017 Chrome10/10/20232254
css.properties.float.inline-start 📋Firefox8/8/2017 Chrome10/10/20232254
css.properties.float.left 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.float.none 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.float.right 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.flood-color 📋Firefox6/17/2008 Chrome5/25/2010707
css.properties.flood-opacity 📋Firefox6/17/2008 Chrome5/25/2010707
css.properties.font 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.font.caption Firefox11/9/2004 Chrome12/11/20081493
css.properties.font.font_stretch_support Firefox12/15/2015 Chrome7/25/2017588
css.properties.font.icon Firefox11/9/2004 Chrome12/11/20081493
css.properties.font.menu Firefox11/9/2004 Chrome12/11/20081493
css.properties.font.message-box Firefox11/9/2004 Chrome12/11/20081493
css.properties.font.small-caption Firefox11/9/2004 Chrome12/11/20081493
css.properties.font.status-bar Firefox11/9/2004 Chrome12/11/20081493
css.properties.font-family 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Not supported on option elements. See bug 1536148.
css.properties.font-family.system-ui Chrome1/25/2017 Firefox9/7/20211686
Firefox: Supported on macOS only.
css.properties.font-feature-settings 📋Firefox12/1/2014 Chrome1/20/2016415
Firefox: The ISO/IEC CD 14496-22 3rd edition suggests using the ssty feature to provide glyph variants more suitable for use in scripts (for example primes used as superscripts). Starting with Firefox 29, this is done automatically by the MathML rendering engine. The ISO/IEC CD 14496-22 3rd edition also suggests applying the dtls feature to letters when placing mathematical accents to get dotless forms (for example dotless i, j with a hat). Starting with Firefox 35, this is done automatically by the MathML rendering engine. You can override the default values determined by the MathML rendering engine with CSS.Firefox: From Firefox 129 the -webkit-font-feature-settings alias has been added to support sites that are still supporting the vendor prefix.Firefox: From Firefox 4 to Firefox 14 (inclusive), Firefox supported an older, slightly different syntax. See OpenType Font Feature support in Firefox 4.Firefox for Android: The ISO/IEC CD 14496-22 3rd edition suggests using the ssty feature to provide glyph variants more suitable for use in scripts (for example primes used as superscripts). Starting with Firefox for Android 29, this is done automatically by the MathML rendering engine. The ISO/IEC CD 14496-22 3rd edition also suggests applying the dtls feature to letters when placing mathematical accents to get dotless forms (for example dotless i, j with a hat). Starting with Firefox for Android 35, this is done automatically by the MathML rendering engine. You can override the default values determined by the MathML rendering engine with CSS.Firefox for Android: From Firefox for Android 129 the -webkit-font-feature-settings alias has been added to support sites that are still supporting the vendor prefix.Firefox for Android: From Firefox for Android 4 to Firefox for Android 14 (inclusive), Firefox for Android supported an older, slightly different syntax. See OpenType Font Feature support in Firefox for Android 4.
css.properties.font-feature-settings.normal 📋Chrome12/13/2011 Firefox8/28/2012259
css.properties.font-kerning 📋Chrome2/20/2014 Firefox9/2/2014194
css.properties.font-optical-sizing 📋Firefox9/5/2018 Chrome12/10/2019461
css.properties.font-optical-sizing.auto 📋Firefox9/5/2018 Chrome12/10/2019461
css.properties.font-optical-sizing.none 📋Firefox9/5/2018 Chrome12/10/2019461
css.properties.font-palette 📋Chrome4/26/2022 Firefox11/15/2022203
css.properties.font-palette.dark 📋Chrome4/26/2022 Firefox11/15/2022203
css.properties.font-palette.light 📋Chrome4/26/2022 Firefox11/15/2022203
css.properties.font-palette.normal 📋Chrome4/26/2022 Firefox11/15/2022203
css.properties.font-size 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.font-size.math Chrome1/10/2023 Firefox8/29/2023231
css.properties.font-size.rem_values Chrome11/12/2013 Firefox7/22/2014252
Firefox: Before Firefox 57, animations using em units are not affected by changes to the font-size of the animated element's parent (bug 1254424).Firefox: Before Firefox 57, some language settings' inherited font-size is smaller than expected (bug 1391341).
css.properties.font-size.xxx-large Firefox10/22/2019 Chrome12/10/201949
css.properties.font-size-adjust 📋Firefox6/17/2008 Chrome7/23/20245880
Firefox: Before Firefox 40, font-size-adjust: 0 was incorrectly interpreted as font-size-adjust: none (bug 1144885).Firefox: Only supported on Windows.Firefox for Android: Before Firefox for Android 40, font-size-adjust: 0 was incorrectly interpreted as font-size-adjust: none (bug 1144885).
css.properties.font-size-adjust.from-font 📋Firefox9/26/2023 Chrome7/23/2024301
css.properties.font-size-adjust.none 📋Firefox6/17/2008 Chrome7/23/20245880
css.properties.font-size-adjust.two-values Firefox9/7/2021 Chrome7/23/20241050
css.properties.font-smooth Chrome5/25/2010 Firefox10/29/20131253
Firefox: Only works on macOS.
css.properties.font-stretch 📋Firefox12/20/2011 Chrome7/25/20172044
Chrome: A font-stretch definition must be added to the @font-face before this property will function.Chrome Android: A font-stretch definition must be added to the @font-face before this property will function.Quest Browser: A font-stretch definition must be added to the @font-face before this property will function.Opera: A font-stretch definition must be added to the @font-face before this property will function.Opera Android: A font-stretch definition must be added to the @font-face before this property will function.Samsung Internet: A font-stretch definition must be added to the @font-face before this property will function.WebView Android: A font-stretch definition must be added to the @font-face before this property will function.
css.properties.font-stretch.percentage Chrome10/17/2017 Firefox6/26/2018252
css.properties.font-style 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 44, oblique was not distinguished from italic.Firefox for Android: Before Firefox for Android 44, oblique was not distinguished from italic.
css.properties.font-style.italic 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.font-style.normal 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.font-style.oblique-angle 📋Chrome10/17/2017 Firefox6/26/2018252
css.properties.font-synthesis 📋Firefox12/1/2014 Chrome1/4/20222591
css.properties.font-synthesis.small-caps Firefox10/5/2021 Chrome1/4/202291
css.properties.font-synthesis.style Firefox1/7/2020 Chrome1/4/2022728
css.properties.font-synthesis.weight Firefox1/7/2020 Chrome1/4/2022728
css.properties.font-synthesis-small-caps 📋Chrome1/4/2022 Firefox3/14/2023434
css.properties.font-synthesis-small-caps.auto 📋Chrome1/4/2022 Firefox3/14/2023434
css.properties.font-synthesis-small-caps.none 📋Chrome1/4/2022 Firefox3/14/2023434
css.properties.font-synthesis-style 📋Chrome1/4/2022 Firefox3/14/2023434
css.properties.font-synthesis-style.auto 📋Chrome1/4/2022 Firefox3/14/2023434
css.properties.font-synthesis-style.none 📋Chrome1/4/2022 Firefox3/14/2023434
css.properties.font-synthesis-weight 📋Chrome1/4/2022 Firefox3/14/2023434
css.properties.font-synthesis-weight.auto 📋Chrome1/4/2022 Firefox3/14/2023434
css.properties.font-synthesis-weight.none 📋Chrome1/4/2022 Firefox3/14/2023434
css.properties.font-variant 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Only supports the small-caps and normal keywords.
css.properties.font-variant.css_fonts_shorthand Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant.historical-forms 📋Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant.none 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant.normal 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.font-variant.sub 📋Firefox12/1/2014 Chrome2/7/20232990
css.properties.font-variant.super 📋Firefox12/1/2014 Chrome2/7/20232990
css.properties.font-variant.turkic_is Firefox7/17/2012 Chrome11/12/2013483
css.properties.font-variant-alternates 📋Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-alternates.annotation 📋Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-alternates.character_variant 📋Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-alternates.historical-forms 📋Firefox1/7/2020 Chrome3/7/20231155
css.properties.font-variant-alternates.normal 📋Firefox1/7/2020 Chrome3/7/20231155
css.properties.font-variant-alternates.ornaments 📋Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-alternates.styleset 📋Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-alternates.stylistic 📋Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-alternates.swash 📋Firefox12/1/2014 Chrome3/7/20233018
css.properties.font-variant-caps 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-caps.all-petite-caps 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-caps.all-small-caps 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-caps.normal 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-caps.petite-caps 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-caps.small-caps 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-caps.titling-caps 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-caps.unicase 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-east-asian 📋Firefox12/1/2014 Chrome12/6/20171101
css.properties.font-variant-east-asian.full-width 📋Firefox12/1/2014 Chrome12/6/20171101
css.properties.font-variant-east-asian.jis04 📋Firefox12/1/2014 Chrome12/6/20171101
css.properties.font-variant-east-asian.jis78 📋Firefox12/1/2014 Chrome12/6/20171101
css.properties.font-variant-east-asian.jis83 📋Firefox12/1/2014 Chrome12/6/20171101
css.properties.font-variant-east-asian.jis90 📋Firefox12/1/2014 Chrome12/6/20171101
css.properties.font-variant-east-asian.normal 📋Firefox12/1/2014 Chrome12/6/20171101
css.properties.font-variant-east-asian.proportional-width 📋Firefox12/1/2014 Chrome12/6/20171101
css.properties.font-variant-east-asian.ruby 📋Firefox12/1/2014 Chrome12/6/20171101
css.properties.font-variant-east-asian.simplified 📋Firefox12/1/2014 Chrome12/6/20171101
css.properties.font-variant-east-asian.traditional 📋Firefox12/1/2014 Chrome12/6/20171101
css.properties.font-variant-emoji 📋Firefox12/13/2022 Chrome11/12/2024700
css.properties.font-variant-ligatures 📋Chrome4/8/2014 Firefox12/1/2014237
css.properties.font-variant-ligatures.common-ligatures 📋Chrome11/12/2013 Firefox12/1/2014384
css.properties.font-variant-ligatures.contextual 📋Chrome11/12/2013 Firefox12/1/2014384
css.properties.font-variant-ligatures.discretionary-ligatures 📋Chrome11/12/2013 Firefox12/1/2014384
css.properties.font-variant-ligatures.historical-ligatures 📋Chrome11/12/2013 Firefox12/1/2014384
css.properties.font-variant-ligatures.no-common-ligatures 📋Chrome11/12/2013 Firefox12/1/2014384
css.properties.font-variant-ligatures.no-contextual 📋Chrome11/12/2013 Firefox12/1/2014384
css.properties.font-variant-ligatures.no-discretionary-ligatures 📋Chrome11/12/2013 Firefox12/1/2014384
css.properties.font-variant-ligatures.no-historical-ligatures 📋Chrome11/12/2013 Firefox12/1/2014384
css.properties.font-variant-ligatures.none 📋Chrome11/12/2013 Firefox12/1/2014384
css.properties.font-variant-ligatures.normal 📋Chrome11/12/2013 Firefox12/1/2014384
css.properties.font-variant-numeric 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-numeric.diagonal-fractions 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-numeric.lining-nums 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-numeric.normal 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-numeric.oldstyle-nums 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-numeric.ordinal 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-numeric.proportional-nums 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-numeric.slashed-zero 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-numeric.stacked-fractions 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variant-numeric.tabular-nums 📋Firefox12/1/2014 Chrome7/20/2016597
css.properties.font-variation-settings 📋Chrome10/17/2017 Firefox9/5/2018323
Safari: Requires macOS 10.13 High Sierra or later.Safari on iOS: Requires iOS 11 or later.WebView on iOS: Requires iOS 11 or later.
css.properties.font-weight 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.font-weight.bold 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.font-weight.bolder 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.font-weight.lighter 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.font-weight.normal 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.font-weight.number Chrome10/17/2017 Firefox6/26/2018252
css.properties.forced-color-adjust 📋Chrome3/2/2021 Firefox5/9/2023798
css.properties.forced-color-adjust.auto 📋Chrome3/2/2021 Firefox5/9/2023798
css.properties.forced-color-adjust.none 📋Chrome3/2/2021 Firefox5/9/2023798
css.properties.gap 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.gap.flex_context 📋Firefox10/23/2018 Chrome7/27/2020643
css.properties.gap.grid_context 📋Chrome4/17/2018 Firefox6/26/201870
css.properties.gap.grid_context.calc_values Firefox3/7/2017 Chrome4/17/2018406
css.properties.gap.grid_context.percentage_values Firefox3/7/2017 Chrome4/17/2018406
css.properties.gap.multicol_context 📋Chrome4/17/2018 Firefox6/26/201870
css.properties.grid 📋Firefox3/7/2017 Chrome3/9/20172
Samsung Internet: This was added early so is out of sync with the equivalent Chromium version.
css.properties.grid-area 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-auto-columns 📋Chrome3/9/2017 Firefox10/22/2019957
Firefox: Does not accept multiple track-size values. See bug 1339672.Firefox for Android: Does not accept multiple track-size values. See bug 1339672.
css.properties.grid-auto-flow 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-auto-flow.column 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-auto-flow.dense 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-auto-flow.row 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-auto-rows 📋Chrome3/9/2017 Firefox10/22/2019957
Firefox: Does not accept multiple track-size values. See bug 1339672.Firefox for Android: Does not accept multiple track-size values. See bug 1339672.
css.properties.grid-column 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-column-end 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-column-start 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-row 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-row-end 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-row-start 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template.none 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-areas 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-areas.none 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-columns 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-columns.animation Firefox3/19/2019 Chrome10/25/20221316
css.properties.grid-template-columns.auto 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-columns.fit-content 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-columns.max-content 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-columns.min-content 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-columns.minmax 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-columns.none 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-columns.repeat 📋Chrome3/9/2017 Firefox5/5/20201153
Firefox: repeat(auto-fill, ...) and repeat(auto-fit, ...) only support one repeated column (see bug 1341507).Firefox: calc() doesn't work in repeat() (see bug 1350069).Firefox for Android: repeat(auto-fill, ...) and repeat(auto-fit, ...) only support one repeated column (see bug 1341507).Firefox for Android: calc() doesn't work in repeat() (see bug 1350069).
css.properties.grid-template-columns.subgrid 📋Firefox12/10/2019 Chrome9/12/20231372
css.properties.grid-template-rows 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-rows.animation Firefox3/19/2019 Chrome10/25/20221316
css.properties.grid-template-rows.auto 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-rows.fit-content 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-rows.max-content 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-rows.min-content 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-rows.minmax 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-rows.none 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.grid-template-rows.repeat 📋Chrome3/9/2017 Firefox5/5/20201153
Firefox: repeat(auto-fill, ...) and repeat(auto-fit, ...) only support one repeated column (see bug 1341507).Firefox: calc() doesn't work in repeat() (see bug 1350069).Firefox for Android: repeat(auto-fill, ...) and repeat(auto-fit, ...) only support one repeated column (see bug 1341507).Firefox for Android: calc() doesn't work in repeat() (see bug 1350069).
css.properties.grid-template-rows.subgrid 📋Firefox12/10/2019 Chrome9/12/20231372
css.properties.height 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.height.auto 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.height.fit-content 📋Chrome10/13/2015 Firefox11/2/20212212
css.properties.height.max-content 📋Chrome10/13/2015 Firefox3/19/20191253
css.properties.height.min-content 📋Chrome10/13/2015 Firefox3/19/20191253
css.properties.hyphenate-character 📋Firefox3/8/2022 Chrome9/27/2022203
css.properties.hyphenate-character.auto 📋Chrome9/2/2010 Firefox3/8/20224205
css.properties.hyphens 📋Firefox12/15/2015 Chrome12/1/2016352
Edge: Only works if the specified language is the same as the language of the underlying OS.Internet Explorer: Only works if the specified language is the same as the language of the underlying OS.
css.properties.hyphens.auto Firefox8/16/2011 Chrome1/19/20213444
Chrome: Only supported on macOS.Edge: Only supported on macOS.Opera: Only supported on macOS.
css.properties.hyphens.language_afrikaans Firefox11/8/2011 Chrome4/4/20234165
css.properties.hyphens.language_bulgarian Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_croatian Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_czech Chrome4/4/2023 Firefox9/3/2024518
css.properties.hyphens.language_danish Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_dutch Firefox11/8/2011 Chrome4/4/20234165
css.properties.hyphens.language_english Firefox8/16/2011 Chrome12/1/20161934
Firefox: For English, Firefox uses an en-US dictionaryFirefox for Android: For English, Firefox for Android uses an en-US dictionarySafari: For English, Safari uses different en-GB and en-US dictionaries.Safari on iOS: For English, Safari on iOS uses different en-GB and en-US dictionaries.WebView on iOS: For English, WebView on iOS uses different en-GB and en-US dictionaries.
css.properties.hyphens.language_estonian Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_french Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_galician Firefox12/20/2011 Chrome4/4/20234123
css.properties.hyphens.language_german_reformed_orthography Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_german_swiss_orthography Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_german_traditional_orthography Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_hungarian Firefox12/20/2011 Chrome11/17/20203255
css.properties.hyphens.language_italian Firefox12/20/2011 Chrome4/4/20234123
css.properties.hyphens.language_latin Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_lithuanian Firefox11/8/2011 Chrome4/4/20234165
css.properties.hyphens.language_norwegian_nn Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_norwegian_no Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_portuguese Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_russian Firefox11/8/2011 Chrome4/4/20234165
css.properties.hyphens.language_slovak Chrome4/4/2023 Firefox9/3/2024518
css.properties.hyphens.language_slovenian Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_spanish Firefox11/8/2011 Chrome11/17/20203297
css.properties.hyphens.language_swedish Firefox11/8/2011 Chrome4/4/20234165
css.properties.hyphens.language_ukrainian Firefox12/20/2011 Chrome4/4/20234123
css.properties.hyphens.language_welsh Firefox11/8/2011 Chrome11/17/20203297
css.properties.image-orientation 📋Firefox12/10/2013 Chrome4/7/20202310
css.properties.image-orientation.from-image 📋Firefox12/10/2013 Chrome4/7/20202310
css.properties.image-orientation.none 📋Firefox12/10/2013 Chrome4/7/20202310
css.properties.image-rendering 📋Firefox1/21/2010 Chrome8/2/2011558
css.properties.image-rendering.auto 📋Firefox1/21/2010 Chrome8/2/2011558
css.properties.image-rendering.crisp-edges 📋Chrome8/2/2011 Firefox1/29/20192737
css.properties.image-rendering.pixelated 📋Chrome3/3/2015 Firefox10/5/20212408
css.properties.inline-size 📋Firefox9/22/2015 Chrome3/9/2017534
css.properties.inline-size.fit-content Chrome3/9/2017 Firefox11/2/20211699
css.properties.inline-size.max-content Chrome3/9/2017 Firefox3/19/2019740
css.properties.inline-size.min-content Chrome3/9/2017 Firefox3/19/2019740
css.properties.inset 📋Firefox3/19/2019 Chrome11/17/2020609
css.properties.inset.auto 📋Firefox1/7/2020 Chrome11/17/2020315
css.properties.inset-block 📋Firefox10/23/2018 Chrome11/17/2020756
css.properties.inset-block.auto 📋Firefox1/7/2020 Chrome11/17/2020315
css.properties.inset-block-end 📋Firefox10/23/2018 Chrome11/17/2020756
css.properties.inset-block-end.auto 📋Firefox1/7/2020 Chrome11/17/2020315
css.properties.inset-block-start 📋Firefox10/23/2018 Chrome11/17/2020756
css.properties.inset-block-start.auto 📋Firefox1/7/2020 Chrome11/17/2020315
css.properties.inset-inline 📋Firefox10/23/2018 Chrome11/17/2020756
css.properties.inset-inline.auto 📋Firefox1/7/2020 Chrome11/17/2020315
css.properties.inset-inline-end 📋Firefox10/23/2018 Chrome11/17/2020756
css.properties.inset-inline-end.auto 📋Firefox1/7/2020 Chrome11/17/2020315
css.properties.inset-inline-start 📋Firefox10/23/2018 Chrome11/17/2020756
css.properties.inset-inline-start.auto 📋Firefox1/7/2020 Chrome11/17/2020315
css.properties.isolation 📋Firefox2/24/2015 Chrome3/3/20157
css.properties.justify-content 📋Firefox4/2/2013 Chrome8/20/2013140
css.properties.justify-content.flex_context 📋Firefox4/2/2013 Chrome7/20/20161205
Chrome: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Chrome implements the new behavior beginning with Chrome 52.Chrome Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Chrome Android implements the new behavior beginning with Chrome Android 52.Firefox: Before Firefox 27, Firefox supported only single-line flexbox.Firefox for Android: Before Firefox for Android 27, Firefox for Android supported only single-line flexbox.Samsung Internet: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. Samsung Internet implements the new behavior beginning with Samsung Internet 6.0.WebView Android: Older versions of the specification treat absolute positioned children as though they are a 0 by 0 flex item. Later specification versions take the children out of the flow and set their positions based on align and justify properties. WebView Android implements the new behavior beginning with WebView Android 52.
css.properties.justify-content.flex_context.left_right Firefox3/7/2017 Chrome8/31/20211638
Internet Explorer: This value is recognized, but has no effect.Opera Android: This value is recognized, but has no effect.
css.properties.justify-content.flex_context.safe_unsafe Firefox10/23/2018 Chrome7/18/20231729
Chrome: Before version 115, this value is recognized, but has no effect.Chrome Android: Before version 115, this value is recognized, but has no effect.Edge: Before version 115, this value is recognized, but has no effect.Opera: Before version 101, this value is recognized, but has no effect.Opera Android: Before version 77, this value is recognized, but has no effect.Samsung Internet: Before version 23.0, this value is recognized, but has no effect.WebView Android: Before version 115, this value is recognized, but has no effect.
css.properties.justify-content.flex_context.space-evenly Firefox3/7/2017 Chrome7/25/2017140
css.properties.justify-content.flex_context.start_end Firefox3/8/2016 Chrome8/31/20212002
css.properties.justify-content.flex_context.stretch Firefox3/7/2017 Chrome3/9/20172
css.properties.justify-content.grid_context 📋Firefox3/7/2017 Chrome3/9/20172
css.properties.justify-items 📋Firefox4/2/2013 Chrome7/20/20161205
css.properties.justify-items.flex_context 📋Firefox4/2/2013 Chrome7/20/20161205
css.properties.justify-items.grid_context 📋Firefox3/8/2016 Chrome3/9/2017366
css.properties.justify-self 📋Firefox3/8/2016 Chrome3/9/2017366
css.properties.justify-self.grid_context 📋Firefox3/8/2016 Chrome3/9/2017366
Internet Explorer: Internet Explorer 10 and 11 have the property -ms-grid-column-align, which acts in a similar way to justify-self.
css.properties.justify-self.position_absolute_context 📋Chrome2/20/2024 Firefox1/7/2025322
css.properties.left 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.left.auto 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.letter-spacing 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.letter-spacing.normal 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.letter-spacing.svg_elements Chrome12/11/2008 Firefox1/7/20204044
css.properties.lighting-color 📋Firefox6/17/2008 Chrome5/25/2010707
css.properties.line-break 📋Chrome4/19/2017 Firefox9/3/2019867
css.properties.line-break.anywhere 📋Firefox9/3/2019 Chrome5/19/2020259
css.properties.line-break.auto 📋Chrome2/21/2013 Firefox9/3/20192385
css.properties.line-break.loose 📋Chrome2/21/2013 Firefox9/3/20192385
css.properties.line-break.normal 📋Chrome12/11/2008 Firefox9/3/20193918
css.properties.line-break.strict 📋Chrome2/21/2013 Firefox9/3/20192385
css.properties.line-clamp 📋Chrome9/2/2010 Firefox7/9/20193232
css.properties.line-height 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.line-height.normal 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-image 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 86, this property did not accept an <image> type, and required the URL of an image.Firefox for Android: Before Firefox for Android 86, this property did not accept an <image> type, and required the URL of an image.
css.properties.list-style-image.none 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-position 📋Firefox11/9/2004 Chrome12/11/20081493
Safari: In Safari, if a block element is the first child of a list element declared as list-style-position: inside, then the marker box is placed on the same line as the block element.Safari on iOS: In Safari on iOS, if a block element is the first child of a list element declared as list-style-position: inside, then the marker box is placed on the same line as the block element.WebView on iOS: In WebView on iOS, if a block element is the first child of a list element declared as list-style-position: inside, then the marker box is placed on the same line as the block element.
css.properties.list-style-position.inside 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-position.outside 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.arabic-indic 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.armenian 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.bengali 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.cambodian 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.circle 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.cjk-decimal 📋Firefox3/18/2014 Chrome5/25/20212625
css.properties.list-style-type.cjk-earthly-branch 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.cjk-heavenly-stem 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.cjk-ideographic 📋Firefox11/9/2004 Chrome12/11/20081493
Opera: Until version 15, only decimal numbers display.Opera Android: Until version 15, only decimal numbers display.
css.properties.list-style-type.decimal 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.decimal-leading-zero 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.devanagari 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.disc 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.disclosure-closed 📋Firefox10/14/2014 Chrome3/2/20212331
css.properties.list-style-type.disclosure-open 📋Firefox10/14/2014 Chrome3/2/20212331
css.properties.list-style-type.ethiopic-halehame Firefox11/9/2004 Chrome9/1/20153948
css.properties.list-style-type.ethiopic-halehame-am Firefox11/9/2004 Chrome9/1/20153948
css.properties.list-style-type.ethiopic-halehame-ti-er Firefox11/9/2004 Chrome9/2/20102123
css.properties.list-style-type.ethiopic-halehame-ti-et Firefox11/9/2004 Chrome9/2/20102123
css.properties.list-style-type.ethiopic-numeric 📋Firefox10/14/2014 Chrome5/25/20212415
Firefox: Before Firefox 38, Firefox added a dot as suffix of the number for ethiopic-numeric (for example, ፫. instead of ፫). The specification later defined the absence of a suffix, which Firefox 38 followed.Firefox for Android: Before Firefox for Android 38, Firefox for Android added a dot as suffix of the number for ethiopic-numeric (for example, ፫. instead of ፫). The specification later defined the absence of a suffix, which Firefox for Android 38 followed.
css.properties.list-style-type.georgian 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.gujarati 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.gurmukhi 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.hangul Firefox11/9/2004 Chrome9/2/20102123
css.properties.list-style-type.hangul-consonant Firefox11/9/2004 Chrome9/2/20102123
css.properties.list-style-type.hebrew 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.hiragana 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.hiragana-iroha 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.japanese-formal 📋Firefox3/18/2014 Chrome5/25/20212625
css.properties.list-style-type.japanese-informal 📋Firefox3/18/2014 Chrome5/25/20212625
css.properties.list-style-type.kannada 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.katakana 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.katakana-iroha 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.khmer 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.korean-hangul-formal 📋Firefox3/18/2014 Chrome9/1/2015532
css.properties.list-style-type.korean-hanja-formal 📋Firefox3/18/2014 Chrome9/1/2015532
css.properties.list-style-type.korean-hanja-informal 📋Firefox3/18/2014 Chrome9/1/2015532
css.properties.list-style-type.lao 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.lower-alpha 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.lower-armenian 📋Chrome8/2/2011 Firefox10/14/20141169
css.properties.list-style-type.lower-greek 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.lower-latin 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.lower-roman 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.malayalam 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.mongolian 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.myanmar 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.none 📋Chrome12/11/2008 Firefox1/7/20204044
css.properties.list-style-type.oriya 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.persian 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.simp-chinese-formal 📋Firefox3/18/2014 Chrome9/1/2015532
css.properties.list-style-type.simp-chinese-informal 📋Firefox3/18/2014 Chrome9/1/2015532
css.properties.list-style-type.square 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.string Firefox7/2/2015 Chrome12/10/20191622
css.properties.list-style-type.tamil 📋Firefox10/14/2014 Chrome5/25/20212415
css.properties.list-style-type.telugu 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.thai 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.tibetan 📋Chrome9/2/2010 Firefox10/14/20141503
css.properties.list-style-type.trad-chinese-formal 📋Firefox3/18/2014 Chrome9/1/2015532
css.properties.list-style-type.trad-chinese-informal 📋Firefox3/18/2014 Chrome9/1/2015532
css.properties.list-style-type.upper-alpha 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.upper-armenian 📋Chrome8/2/2011 Firefox10/14/20141169
css.properties.list-style-type.upper-latin 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.upper-roman 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.list-style-type.urdu Chrome9/2/2010 Firefox10/14/20141503
css.properties.margin 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.margin.auto Firefox11/9/2004 Chrome12/11/20081493
Edge: The auto value is not supported in quirks mode.Internet Explorer: The auto value is not supported in quirks mode.
css.properties.margin-block 📋Firefox3/19/2019 Chrome11/17/2020609
css.properties.margin-block-end 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.margin-block-start 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.margin-bottom 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.margin-bottom.auto Firefox11/9/2004 Chrome12/11/20081493
Edge: The auto value is not supported in quirks mode.Internet Explorer: The auto value is not supported in quirks mode.
css.properties.margin-inline 📋Firefox3/19/2019 Chrome11/17/2020609
css.properties.margin-inline-end 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.margin-inline-start 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.margin-left 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.margin-left.auto Firefox11/9/2004 Chrome12/11/20081493
Edge: The auto value is not supported in quirks mode.Internet Explorer: The auto value is not supported in quirks mode.
css.properties.margin-right 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.margin-right.auto Firefox11/9/2004 Chrome12/11/20081493
Edge: The auto value is not supported in quirks mode.Internet Explorer: The auto value is not supported in quirks mode.
css.properties.margin-top 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.margin-top.auto Firefox11/9/2004 Chrome12/11/20081493
Edge: The auto value is not supported in quirks mode.Internet Explorer: The auto value is not supported in quirks mode.
css.properties.marker 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.marker-end 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.marker-mid 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.marker-start 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.mask 📋Firefox4/19/2017 Chrome12/5/20232421
Chrome: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard -webkit-mask-attachment property.Chrome: While the property is recognized, values applied to it don't have any effect.Chrome Android: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard -webkit-mask-attachment property.Chrome Android: While the property is recognized, values applied to it don't have any effect.Edge: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard -webkit-mask-attachment property.Edge: While the property is recognized, values applied to it don't have any effect.Firefox: Only supports mask: url(file.svg#mask_id) or mask: url(#mask_id), where the URL is a reference to an SVG <mask> element.Firefox for Android: Only supports mask: url(file.svg#mask_id) or mask: url(#mask_id), where the URL is a reference to an SVG <mask> element.Quest Browser: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard -webkit-mask-attachment property.Quest Browser: While the property is recognized, values applied to it don't have any effect.Opera: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard -webkit-mask-attachment property.Opera: While the property is recognized, values applied to it don't have any effect.Opera Android: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard -webkit-mask-attachment property.Opera Android: While the property is recognized, values applied to it don't have any effect.Safari: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard -webkit-mask-attachment property.Safari: While the property is recognized, values applied to it don't have any effect.Safari on iOS: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard -webkit-mask-attachment property.Safari on iOS: While the property is recognized, values applied to it don't have any effect.Samsung Internet: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard -webkit-mask-attachment property.Samsung Internet: While the property is recognized, values applied to it don't have any effect.WebView Android: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard -webkit-mask-attachment property.WebView Android: While the property is recognized, values applied to it don't have any effect.WebView on iOS: The prefixed property can be used with SVG and HTML with a slightly different syntax, which allows setting the non-standard -webkit-mask-attachment property.WebView on iOS: While the property is recognized, values applied to it don't have any effect.
css.properties.mask-clip 📋Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-composite 📋Firefox4/19/2017 Chrome12/5/20232421
Chrome: See also -webkit-mask-composite for a similar non-standard property that uses different keywords.Chrome Android: See also -webkit-mask-composite for a similar non-standard property that uses different keywords.Edge: See also -webkit-mask-composite for a similar non-standard property that uses different keywords.Opera: See also -webkit-mask-composite for a similar non-standard property that uses different keywords.Opera Android: See also -webkit-mask-composite for a similar non-standard property that uses different keywords.Safari: See also -webkit-mask-composite for a similar non-standard property that uses different keywords.Safari on iOS: See also -webkit-mask-composite for a similar non-standard property that uses different keywords.Samsung Internet: See also -webkit-mask-composite for a similar non-standard property that uses different keywords.WebView Android: See also -webkit-mask-composite for a similar non-standard property that uses different keywords.WebView on iOS: See also -webkit-mask-composite for a similar non-standard property that uses different keywords.
css.properties.mask-composite.add 📋Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-composite.exclude 📋Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-composite.intersect 📋Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-composite.subtract 📋Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-image 📋Firefox4/19/2017 Chrome12/5/20232421
Chrome: From version 8, Chrome added support for gradient values. Initially, Chrome supported only -webkit- prefixed values for gradients (such as -webkit-linear-gradient()). Later, support for unprefixed values was added.Chrome Android: From version 18, Chrome Android added support for gradient values. Initially, Chrome Android supported only -webkit- prefixed values for gradients (such as -webkit-linear-gradient()). Later, support for unprefixed values was added.Quest Browser: From version 5.0, Quest Browser added support for gradient values. Initially, Quest Browser supported only -webkit- prefixed values for gradients (such as -webkit-linear-gradient()). Later, support for unprefixed values was added.Safari: Initially, Safari supported only -webkit- prefixed values for gradients (such as -webkit-linear-gradient()). Later, support for unprefixed values was added.Safari on iOS: Initially, Safari on iOS supported only -webkit- prefixed values for gradients (such as -webkit-linear-gradient()). Later, support for unprefixed values was added.WebView Android: Initially, Android supported only -webkit- prefixed values for gradients (such as -webkit-linear-gradient()). Later, support for unprefixed values was added.WebView on iOS: Initially, WebView on iOS supported only -webkit- prefixed values for gradients (such as -webkit-linear-gradient()). Later, support for unprefixed values was added.
css.properties.mask-image.multiple_mask_images Chrome12/11/2008 Firefox4/19/20173051
css.properties.mask-image.svg_masks Chrome12/2/2010 Firefox4/19/20172330
css.properties.mask-mode 📋Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-mode.alpha 📋Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-mode.luminance 📋Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-mode.match-source 📋Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-origin 📋Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-origin.fill-box Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-origin.stroke-box Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-origin.view-box Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-position 📋Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-repeat 📋Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-size 📋Firefox4/19/2017 Chrome12/5/20232421
css.properties.mask-type 📋Chrome1/10/2013 Firefox1/13/2015733
css.properties.mask-type.alpha 📋Chrome1/10/2013 Firefox1/13/2015733
css.properties.mask-type.luminance 📋Chrome1/10/2013 Firefox1/13/2015733
css.properties.math-depth 📋Chrome1/10/2023 Firefox8/29/2023231
css.properties.math-style 📋Chrome1/10/2023 Firefox8/29/2023231
css.properties.max-block-size 📋Firefox9/22/2015 Chrome3/9/2017534
css.properties.max-block-size.fit-content Chrome3/9/2017 Firefox11/2/20211699
css.properties.max-block-size.max-content Chrome3/9/2017 Firefox3/19/2019740
css.properties.max-block-size.min-content Chrome3/9/2017 Firefox3/19/2019740
css.properties.max-height 📋Firefox11/9/2004 Chrome3/28/20122696
Firefox: CSS 2.1 leaves the behavior of max-height with table undefined. Firefox supports applying max-height to table elements.Opera: CSS 2.1 leaves the behavior of max-height with table undefined. Opera supports applying max-height to table elements.
css.properties.max-height.fit-content 📋Chrome10/13/2015 Firefox11/2/20212212
Firefox: Firefox implements the definitions given in CSS3 Basic Box. This defines available and not fit-available. Also, the definition of fit-content is simpler than in CSS3 Sizing.Firefox for Android: Firefox for Android implements the definitions given in CSS3 Basic Box. This defines available and not fit-available. Also, the definition of fit-content is simpler than in CSS3 Sizing.
css.properties.max-height.max-content 📋Chrome10/13/2015 Firefox3/19/20191253
css.properties.max-height.min-content 📋Chrome10/13/2015 Firefox3/19/20191253
css.properties.max-height.none 📋Firefox11/9/2004 Chrome3/28/20122696
css.properties.max-inline-size 📋Firefox9/22/2015 Chrome3/9/2017534
css.properties.max-inline-size.fit-content Chrome3/9/2017 Firefox11/2/20211699
css.properties.max-inline-size.max-content Chrome3/9/2017 Firefox3/19/2019740
css.properties.max-inline-size.min-content Chrome3/9/2017 Firefox3/19/2019740
css.properties.max-width 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: CSS 2.1 leaves the behavior of max-width with table undefined. Firefox supports applying max-width to table elements.Firefox for Android: CSS 2.1 leaves the behavior of max-width with table undefined. Firefox for Android supports applying max-width to table elements.Opera: CSS 2.1 leaves the behavior of max-width with table undefined. Opera supports applying max-width to table elements.
css.properties.max-width.fit-content 📋Chrome10/13/2015 Firefox11/2/20212212
Firefox: Firefox implements the definitions given in CSS3 Basic Box. This defines available and not fit-available. Also, the definition of fit-content is simpler than in CSS3 Sizing.Firefox for Android: Firefox for Android implements the definitions given in CSS3 Basic Box. This defines available and not fit-available. Also, the definition of fit-content is simpler than in CSS3 Sizing.
css.properties.max-width.max-content 📋Chrome10/13/2015 Firefox3/19/20191253
css.properties.max-width.min-content 📋Chrome10/13/2015 Firefox3/19/20191253
css.properties.max-width.none 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.min-block-size 📋Firefox9/22/2015 Chrome3/9/2017534
css.properties.min-block-size.fit-content Chrome3/9/2017 Firefox11/2/20211699
css.properties.min-block-size.max-content Chrome3/9/2017 Firefox3/19/2019740
css.properties.min-block-size.min-content Chrome3/9/2017 Firefox3/19/2019740
css.properties.min-height 📋Firefox6/17/2008 Chrome12/11/2008177
Firefox: CSS 2.1 leaves the behavior of min-height with table undefined. Firefox supports applying min-height to table elements.Firefox for Android: CSS 2.1 leaves the behavior of min-height with table undefined. Firefox for Android supports applying min-height to table elements.Internet Explorer: In Internet Explorer 10 and 11, a min-height declaration on a column-direction flex container doesn't apply to the container's flex items. See Flexbug #3 for more info.Opera: CSS 2.1 leaves the behavior of min-height with table undefined. Opera supports applying min-height to table elements.
css.properties.min-height.auto Chrome7/31/2012 Firefox12/1/2014853
Firefox: Firefox 18 and later used auto as the initial value for min-height.Firefox for Android: Firefox for Android 18 and later used auto as the initial value for min-height.
css.properties.min-height.fit-content Chrome10/13/2015 Firefox11/2/20212212
Firefox: Firefox implements the definitions given in CSS3 Basic Box. This defines available and not fit-available. Also, the definition of fit-content is simpler than in CSS3 Sizing.Firefox for Android: Firefox for Android implements the definitions given in CSS3 Basic Box. This defines available and not fit-available. Also, the definition of fit-content is simpler than in CSS3 Sizing.
css.properties.min-height.max-content Chrome10/13/2015 Firefox3/19/20191253
css.properties.min-height.min-content Chrome10/13/2015 Firefox3/19/20191253
css.properties.min-inline-size 📋Firefox9/22/2015 Chrome3/9/2017534
css.properties.min-inline-size.fit-content Chrome3/9/2017 Firefox11/2/20211699
css.properties.min-inline-size.max-content Chrome3/9/2017 Firefox3/19/2019740
css.properties.min-inline-size.min-content Chrome3/9/2017 Firefox3/19/2019740
css.properties.min-width 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: CSS 2.1 leaves the behavior of min-width with table undefined. Firefox supports applying min-width to table elements.Firefox for Android: CSS 2.1 leaves the behavior of min-width with table undefined. Firefox for Android supports applying min-width to table elements.Opera: CSS 2.1 leaves the behavior of min-width with table undefined. Opera supports applying min-width to table elements.
css.properties.min-width.auto Chrome7/31/2012 Firefox12/1/2014853
Chrome: Chrome uses auto as the initial value for min-width.Chrome Android: Chrome Android uses auto as the initial value for min-width.Edge: Edge uses auto as the initial value for min-width.Firefox: Firefox 18 and later (until the value was removed), used auto as the initial value for min-width.Firefox for Android: Firefox for Android 18 and later (until the value was removed), used auto as the initial value for min-width.Quest Browser: Quest Browser uses auto as the initial value for min-width.Opera: Opera uses auto as the initial value for min-width.Opera Android: Opera Android uses auto as the initial value for min-width.Samsung Internet: Samsung Internet uses auto as the initial value for min-width.WebView Android: WebView Android uses auto as the initial value for min-width.
css.properties.min-width.fit-content Chrome10/13/2015 Firefox11/2/20212212
Firefox: Firefox implements the definitions given in CSS3 Basic Box. This defines available and not fit-available. Also, the definition of fit-content is simpler than in CSS3 Sizing.Firefox for Android: Firefox for Android implements the definitions given in CSS3 Basic Box. This defines available and not fit-available. Also, the definition of fit-content is simpler than in CSS3 Sizing.
css.properties.min-width.max-content Chrome10/13/2015 Firefox3/19/20191253
css.properties.min-width.min-content Chrome10/13/2015 Firefox3/19/20191253
css.properties.mix-blend-mode 📋Firefox9/2/2014 Chrome3/3/2015182
css.properties.mix-blend-mode.plus-lighter 📋Chrome3/29/2022 Firefox4/5/20227
css.properties.mix-blend-mode.svg_elements Firefox9/2/2014 Chrome3/3/2015182
css.properties.object-fit 📋Chrome1/14/2014 Firefox2/24/2015406
Edge: Only supported for <img> elements.
css.properties.object-fit.contain 📋Chrome1/14/2014 Firefox2/24/2015406
css.properties.object-fit.cover 📋Chrome1/14/2014 Firefox2/24/2015406
css.properties.object-fit.fill 📋Chrome1/14/2014 Firefox2/24/2015406
css.properties.object-fit.none 📋Chrome1/14/2014 Firefox2/24/2015406
css.properties.object-fit.scale-down 📋Chrome1/14/2014 Firefox2/24/2015406
css.properties.object-position 📋Chrome1/14/2014 Firefox2/24/2015406
Edge: Only supported for <img> elements.
css.properties.offset 📋Chrome12/1/2016 Firefox1/7/20201132
css.properties.offset-anchor 📋Firefox1/7/2020 Chrome8/15/20231316
css.properties.offset-anchor.auto 📋Firefox1/7/2020 Chrome8/15/20231316
css.properties.offset-anchor.bottom 📋Firefox1/7/2020 Chrome8/15/20231316
css.properties.offset-anchor.center 📋Firefox1/7/2020 Chrome8/15/20231316
css.properties.offset-anchor.left 📋Firefox1/7/2020 Chrome8/15/20231316
css.properties.offset-anchor.right 📋Firefox1/7/2020 Chrome8/15/20231316
css.properties.offset-anchor.top 📋Firefox1/7/2020 Chrome8/15/20231316
css.properties.offset-distance 📋Chrome12/1/2016 Firefox1/7/20201132
css.properties.offset-path 📋Chrome12/1/2016 Firefox1/7/20201132
Samsung Internet: path() is the only value type supported.
css.properties.offset-path.basic_shape 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-path.border-box 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-path.content-box 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-path.fill-box 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-path.none 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.offset-path.padding-box 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-path.path Chrome1/23/2018 Firefox1/7/2020714
css.properties.offset-path.ray 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-path.stroke-box 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-path.url 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-path.view-box 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-position 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-position.auto 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-position.bottom 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-position.center 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-position.left 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-position.normal 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-position.right 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-position.top 📋Chrome8/15/2023 Firefox1/23/2024161
css.properties.offset-rotate 📋Chrome1/25/2017 Firefox1/7/20201077
css.properties.offset-rotate.auto 📋Chrome10/13/2015 Firefox1/7/20201547
css.properties.offset-rotate.reverse 📋Chrome10/13/2015 Firefox1/7/20201547
css.properties.opacity 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.opacity.percentages Chrome10/22/2019 Firefox10/22/2019
css.properties.order 📋Firefox4/2/2013 Chrome8/20/2013140
Firefox: Since Firefox 28, multi-line flexbox is supported.Firefox for Android: Since Firefox for Android 28, multi-line flexbox is supported.
css.properties.outline 📋Firefox4/19/2021 Chrome9/21/2021155
Chrome: Before Chrome 94, outline does not follow the shape of border-radius.Chrome Android: Before Chrome Android 94, outline does not follow the shape of border-radius.Edge: Before Edge 94, outline does not follow the shape of border-radius.Firefox: Before Firefox 88, outline does not follow the shape of border-radius.Firefox for Android: Before Firefox for Android 88, outline does not follow the shape of border-radius.Quest Browser: Before Quest Browser 18.0, outline does not follow the shape of border-radius.Opera: Before Opera 80, outline does not follow the shape of border-radius.Safari: Before Safari 16.4, outline does not follow the shape of border-radius. See bug 20807.Safari on iOS: Before Safari on iOS 16.4, outline does not follow the shape of border-radius. See bug 20807.WebView Android: Before Chrome 94, outline does not follow the shape of border-radius.WebView on iOS: Before WebView on iOS 16.4, outline does not follow the shape of border-radius. See bug 20807.
css.properties.outline-color 📋Firefox11/29/2005 Chrome12/11/20081108
css.properties.outline-offset 📋Firefox11/29/2005 Chrome12/11/20081108
Firefox: Before Firefox 88, an outline does not follow the shape of border-radius.Firefox for Android: Before Firefox for Android 88, an outline does not follow the shape of border-radius.
css.properties.outline-style 📋Firefox11/29/2005 Chrome12/11/20081108
Firefox: Before Firefox 88, an outline does not follow the shape of border-radius.Firefox for Android: Before Firefox for Android 88, an outline does not follow the shape of border-radius.
css.properties.outline-style.auto 📋Firefox11/29/2005 Chrome12/11/20081108
css.properties.outline-style.dashed 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.outline-style.dotted 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.outline-style.double 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.outline-style.groove 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.outline-style.inset 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.outline-style.none 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.outline-style.outset 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.outline-style.ridge 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.outline-style.solid 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.outline-width 📋Firefox11/29/2005 Chrome12/11/20081108
Firefox: Before Firefox 88, an outline does not follow the shape of border-radius.Firefox for Android: Before Firefox for Android 88, an outline does not follow the shape of border-radius.
css.properties.overflow 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: After Firefox 3.6, the overflow property is correctly applied to table group elements (<thead>, <tbody>, <tfoot>).Internet Explorer: From version 4 to 6, Internet Explorer enlarges an element with overflow: visible (default value) to fit the content inside it. height and width behave like min-height and min-width, respectively.
css.properties.overflow.auto 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.overflow.clip 📋Firefox9/22/2020 Chrome4/13/2021203
css.properties.overflow.hidden 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.overflow.multiple_keywords Firefox6/26/2018 Chrome7/24/201828
css.properties.overflow.scroll 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.overflow.visible 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.overflow-anchor 📋Chrome1/25/2017 Firefox3/19/2019783
css.properties.overflow-anchor.auto 📋Chrome1/25/2017 Firefox3/19/2019783
css.properties.overflow-anchor.none 📋Chrome1/25/2017 Firefox3/19/2019783
css.properties.overflow-clip-margin 📋Chrome4/13/2021 Firefox6/28/2022441
Chrome: Only works when both axes are using overflow: clip. See bug 40235584.Chrome Android: Only works when both axes are using overflow: clip. See bug 40235584.Edge: Only works when both axes are using overflow: clip. See bug 40235584.Firefox: Only supports using a length, not a visual box. See bug 1661582.Firefox for Android: Only supports using a length, not a visual box. See bug 1661582.Quest Browser: Only works when both axes are using overflow: clip. See bug 40235584.Opera: Only works when both axes are using overflow: clip. See bug 40235584.Opera Android: Only works when both axes are using overflow: clip. See bug 40235584.Samsung Internet: Only works when both axes are using overflow: clip. See bug 40235584.WebView Android: Only works when both axes are using overflow: clip. See bug 40235584.
css.properties.overflow-wrap 📋Chrome11/6/2012 Firefox9/20/20161414
css.properties.overflow-wrap.anywhere 📋Firefox1/29/2019 Chrome2/4/2020371
css.properties.overflow-wrap.break-word 📋Chrome12/11/2008 Firefox6/30/2009201
css.properties.overflow-wrap.normal 📋Chrome12/11/2008 Firefox6/30/2009201
css.properties.overflow-x 📋Chrome12/11/2008 Firefox6/30/2009201
css.properties.overflow-x.auto 📋Chrome12/11/2008 Firefox6/30/2009201
css.properties.overflow-x.clip 📋Firefox9/22/2020 Chrome4/13/2021203
css.properties.overflow-x.hidden 📋Chrome12/11/2008 Firefox6/30/2009201
css.properties.overflow-x.scroll 📋Chrome12/11/2008 Firefox6/30/2009201
css.properties.overflow-x.visible 📋Chrome12/11/2008 Firefox6/30/2009201
css.properties.overflow-y 📋Chrome12/11/2008 Firefox6/30/2009201
css.properties.overflow-y.auto 📋Chrome12/11/2008 Firefox6/30/2009201
css.properties.overflow-y.clip 📋Firefox9/22/2020 Chrome4/13/2021203
css.properties.overflow-y.hidden 📋Chrome12/11/2008 Firefox6/30/2009201
css.properties.overflow-y.scroll 📋Chrome12/11/2008 Firefox6/30/2009201
css.properties.overflow-y.visible 📋Chrome12/11/2008 Firefox6/30/2009201
css.properties.overscroll-behavior 📋Chrome12/6/2017 Firefox3/13/201897
css.properties.overscroll-behavior.auto 📋Chrome12/6/2017 Firefox3/13/201897
css.properties.overscroll-behavior.contain 📋Chrome12/6/2017 Firefox3/13/201897
css.properties.overscroll-behavior.none 📋Chrome12/6/2017 Firefox3/13/201897
Edge: The none value incorrectly behaves as contain (allowing for the elastic bounce effect).
css.properties.overscroll-behavior-block 📋Chrome9/10/2019 Firefox2/11/2020154
css.properties.overscroll-behavior-block.auto 📋Chrome9/10/2019 Firefox2/11/2020154
css.properties.overscroll-behavior-block.contain 📋Chrome9/10/2019 Firefox2/11/2020154
css.properties.overscroll-behavior-block.none 📋Chrome9/10/2019 Firefox2/11/2020154
css.properties.overscroll-behavior-inline 📋Chrome9/10/2019 Firefox2/11/2020154
css.properties.overscroll-behavior-inline.auto 📋Chrome9/10/2019 Firefox2/11/2020154
css.properties.overscroll-behavior-inline.contain 📋Chrome9/10/2019 Firefox2/11/2020154
css.properties.overscroll-behavior-inline.none 📋Chrome9/10/2019 Firefox2/11/2020154
css.properties.overscroll-behavior-x 📋Chrome12/6/2017 Firefox3/13/201897
css.properties.overscroll-behavior-x.auto 📋Chrome12/6/2017 Firefox3/13/201897
css.properties.overscroll-behavior-x.contain 📋Chrome12/6/2017 Firefox3/13/201897
css.properties.overscroll-behavior-x.none 📋Chrome12/6/2017 Firefox3/13/201897
Edge: The none value incorrectly behaves as contain (allowing for the elastic bounce effect).
css.properties.overscroll-behavior-y 📋Chrome12/6/2017 Firefox3/13/201897
css.properties.overscroll-behavior-y.auto 📋Chrome12/6/2017 Firefox3/13/201897
css.properties.overscroll-behavior-y.contain 📋Firefox3/13/2018 Chrome5/19/2020798
css.properties.overscroll-behavior-y.none 📋Firefox3/13/2018 Chrome5/19/2020798
Edge: The none value incorrectly behaves as contain (allowing for the elastic bounce effect).
css.properties.padding 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.padding-block 📋Firefox3/19/2019 Chrome11/17/2020609
css.properties.padding-block-end 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.padding-block-start 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.padding-bottom 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.padding-inline 📋Firefox3/19/2019 Chrome11/17/2020609
css.properties.padding-inline-end 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.padding-inline-start 📋Firefox9/22/2015 Chrome9/4/20181078
css.properties.padding-left 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.padding-right 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.padding-top 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.page 📋Chrome8/25/2020 Firefox2/14/2023903
css.properties.page-break-after 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.page-break-after.always 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.page-break-after.auto 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.page-break-after.left 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.page-break-after.right 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.page-break-before 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.page-break-before.always 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.page-break-before.auto 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.page-break-before.left 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.page-break-before.right 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.page-break-inside 📋Chrome12/11/2008 Firefox2/19/20131531
css.properties.page-break-inside.auto 📋Chrome12/11/2008 Firefox2/19/20131531
css.properties.page-break-inside.avoid 📋Chrome12/11/2008 Firefox2/19/20131531
Firefox: Until Firefox 25, page-break-inside: avoid did not work with the height of a block.Firefox for Android: Until Firefox for Android 25, page-break-inside: avoid did not work with the height of a block.
css.properties.paint-order 📋Firefox5/9/2018 Chrome3/19/20242141
Chrome: Does not affect stroked HTML text, see bug 41372165Chrome Android: Does not affect stroked HTML text, see bug 41372165Edge: Does not affect stroked HTML text, see bug 41372165Quest Browser: Does not affect stroked HTML text, see bug 41372165Opera: Does not affect stroked HTML text, see bug 41372165Opera Android: Does not affect stroked HTML text, see bug 41372165Safari: Does not affect stroked HTML text, see bug 168601Safari on iOS: Does not affect stroked HTML text, see bug 168601Samsung Internet: Does not affect stroked HTML text, see bug 41372165WebView Android: Does not affect stroked HTML text, see bug 41372165WebView on iOS: Does not affect stroked HTML text, see bug 168601
css.properties.perspective 📋Firefox10/9/2012 Chrome7/16/2014645
Safari on iOS: In iOS 13, the perspective property did not function properly. The issues were fixed in iOS 14.WebView on iOS: In iOS 13, the perspective property did not function properly. The issues were fixed in iOS 14.
css.properties.perspective.none 📋Chrome6/7/2011 Firefox1/31/2012238
css.properties.perspective-origin 📋Firefox10/9/2012 Chrome7/16/2014645
css.properties.perspective-origin.bottom 📋Chrome6/7/2011 Firefox1/31/2012238
css.properties.perspective-origin.center 📋Chrome6/7/2011 Firefox1/31/2012238
css.properties.perspective-origin.left 📋Chrome6/7/2011 Firefox1/31/2012238
css.properties.perspective-origin.right 📋Chrome6/7/2011 Firefox1/31/2012238
css.properties.perspective-origin.top 📋Chrome6/7/2011 Firefox1/31/2012238
css.properties.place-content 📋Firefox3/8/2016 Chrome6/5/2017454
css.properties.place-content.flex_context Firefox3/8/2016 Chrome6/5/2017454
Firefox: Starting with version 60, you can only specify a single value if it is valid for both align-content and justify-content.Firefox for Android: Starting with version 60, you can only specify a single value if it is valid for both align-content and justify-content.
css.properties.place-content.grid_context Firefox4/19/2017 Chrome6/5/201747
Firefox: Starting with version 60, you can only specify a single value if it is valid for both align-content and justify-content.Firefox for Android: Starting with version 60, you can only specify a single value if it is valid for both align-content and justify-content.
css.properties.place-items 📋Firefox3/8/2016 Chrome6/5/2017454
css.properties.place-items.flex_context Firefox3/8/2016 Chrome6/5/2017454
css.properties.place-items.grid_context Firefox3/8/2016 Chrome6/5/2017454
css.properties.place-self 📋Firefox3/8/2016 Chrome6/5/2017454
css.properties.place-self.flex_context Firefox3/8/2016 Chrome6/5/2017454
css.properties.place-self.grid_context Firefox3/8/2016 Chrome6/5/2017454
css.properties.place-self.position_absolute_context 📋Chrome2/20/2024 Firefox1/7/2025322
css.properties.pointer-events 📋Firefox11/29/2005 Chrome12/11/20081108
css.properties.pointer-events.html_elements Chrome5/21/2009 Firefox1/21/2010245
css.properties.position 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.position.absolute 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 57, absolute positioning did not work correctly when applied to elements inside tables that have border-collapse applied to them (bug 1379306).Firefox: Before Firefox 30, absolute positioning of table rows and row groups was not supported (bug 63895).Firefox for Android: Before Firefox for Android 57, absolute positioning did not work correctly when applied to elements inside tables that have border-collapse applied to them (bug 1379306).Firefox for Android: Before Firefox for Android 30, absolute positioning of table rows and row groups was not supported (bug 63895).
css.properties.position.absolutely_positioned_flex_children Chrome7/20/2016 Firefox3/7/2017230
css.properties.position.fixed 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 44, position: fixed didn't create a stacking context in most cases. Firefox and the specification have been modified to mimic Chrome and Safari's long-time behavior.Firefox for Android: Before Firefox for Android 44, position: fixed didn't create a stacking context in most cases. Firefox for Android and the specification have been modified to mimic Chrome and Safari's long-time behavior.Internet Explorer: In Internet Explorer, fixed positioning doesn't work if the document is in quirks mode.
css.properties.position.position_sticky_table_elements Chrome1/25/2017 Firefox3/13/2018412
Firefox: Borders do not display on table headers if border-collapse is set to collapse (bug 1727594).Firefox for Android: Borders do not display on table headers if border-collapse is set to collapse (bug 1727594).
css.properties.position.relative 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.position.static 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.position.sticky 📋Firefox9/2/2014 Chrome1/25/2017876
css.properties.print-color-adjust 📋Chrome2/8/2012 Firefox2/8/20223653
Chrome: Chrome does not print backgrounds of the <body> element. If this property is set to exact for the <body> element, it will apply only to its descendants.Chrome: Before version 26, if background images are clipped (for example, when using background-image sprites) and -webkit-print-color-adjust is set to exact, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See bug 40219905.Chrome Android: Chrome Android does not print backgrounds of the <body> element. If this property is set to exact for the <body> element, it will apply only to its descendants.Chrome Android: Before version 26, if background images are clipped (for example, when using background-image sprites) and -webkit-print-color-adjust is set to exact, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See bug 40219905.Edge: Edge does not print backgrounds of the <body> element. If this property is set to exact for the <body> element, it will apply only to its descendants.Quest Browser: Quest Browser does not print backgrounds of the <body> element. If this property is set to exact for the <body> element, it will apply only to its descendants.Quest Browser: Before version 5.0, if background images are clipped (for example, when using background-image sprites) and -webkit-print-color-adjust is set to exact, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See bug 40219905.Opera: Opera does not print backgrounds of the <body> element. If this property is set to exact for the <body> element, it will apply only to its descendants.Opera Android: Opera does not print backgrounds of the <body> element. If this property is set to exact for the <body> element, it will apply only to its descendants.Safari: Safari does not print backgrounds of the <body> element. If this property is set to exact for the <body> element, it will apply only to its descendants.Safari on iOS: Safari on iOS does not print backgrounds of the <body> element. If this property is set to exact for the <body> element, it will apply only to its descendants.Samsung Internet: Samsung Internet does not print backgrounds of the <body> element. If this property is set to exact for the <body> element, it will apply only to its descendants.Samsung Internet: In version 1, if background images are clipped (for example, when using background-image sprites) and -webkit-print-color-adjust is set to exact, then backgrounds will appear distorted when printed. Solid backgrounds and background images that are not clipped (i.e., backgrounds that have narrower and shorter than the element to which they are applied) are printed correctly. See bug 40219905.WebView Android: WebView does not print backgrounds of the <body> element. If this property is set to exact for the <body> element, it will apply only to its descendants.WebView on iOS: WebView on iOS does not print backgrounds of the <body> element. If this property is set to exact for the <body> element, it will apply only to its descendants.
css.properties.quotes 📋Firefox11/29/2005 Chrome4/27/20111975
css.properties.quotes.auto 📋Firefox10/22/2019 Chrome11/17/2020392
Internet Explorer: This value is not supported, but the default browser behavior is to choose appropriate quotes for the user's language setting
css.properties.quotes.none 📋Firefox11/29/2005 Chrome4/27/20111975
css.properties.r 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.resize 📋Chrome12/11/2008 Firefox3/22/2011831
Safari on iOS: The value is recognized, but has no effect.WebView on iOS: The value is recognized, but has no effect.
css.properties.resize.block Firefox10/23/2018 Chrome10/10/20231813
css.properties.resize.block_level_support Chrome1/25/2010 Firefox6/21/2011512
Firefox: resize doesn't have any effect on <iframe>. See bug 680823)Firefox for Android: resize doesn't have any effect on <iframe>. See bug 680823)
css.properties.resize.inline Firefox10/23/2018 Chrome10/10/20231813
css.properties.right 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.right.auto 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.rotate 📋Firefox1/7/2020 Chrome8/2/2022938
css.properties.rotate.none 📋Firefox1/7/2020 Chrome8/2/2022938
css.properties.rotate.x_y_z_angle Firefox1/7/2020 Chrome8/2/2022938
css.properties.row-gap 📋Chrome12/1/2015 Firefox3/7/2017462
css.properties.row-gap.flex_context 📋Firefox10/23/2018 Chrome7/27/2020643
css.properties.row-gap.grid_context 📋Chrome4/17/2018 Firefox6/26/201870
css.properties.ruby-align 📋Firefox5/12/2015 Chrome8/20/20243388
Internet Explorer: Internet Explorer 9 and later supports an earlier draft of CSS Ruby with non-standard values for this property: auto, left, center, right, distribute-letter, distribute-space, and line-edge.
css.properties.ruby-align.center 📋Firefox5/12/2015 Chrome8/20/20243388
css.properties.ruby-align.space-around 📋Firefox5/12/2015 Chrome8/20/20243388
css.properties.ruby-align.space-between 📋Firefox5/12/2015 Chrome8/20/20243388
css.properties.ruby-align.start 📋Firefox5/12/2015 Chrome8/20/20243388
css.properties.ruby-position 📋Firefox5/12/2015 Chrome7/27/20201903
Chrome: Implemented as a non-standard, prefixed, version of ruby-position, -webkit-ruby-position: it has two properties: before and after (both equivalent, for ltr and rtl scripts to the standard over value used with ruby-align: start).Chrome Android: Implemented as a non-standard, prefixed, version of ruby-position, -webkit-ruby-position: it has two properties: before and after (both equivalent, for ltr and rtl scripts to the standard over value used with ruby-align: start).Edge: Implemented as a non-standard, prefixed, version of ruby-position, -webkit-ruby-position: it has two properties: before and after (both equivalent, for ltr and rtl scripts to the standard over value used with ruby-align: start).Internet Explorer: Internet Explorer 9 and later support an old draft values: inline (equivalent of having display: inline on the ruby), and above (synonym of the modern over).Quest Browser: Implemented as a non-standard, prefixed, version of ruby-position, -webkit-ruby-position: it has two properties: before and after (both equivalent, for ltr and rtl scripts to the standard over value used with ruby-align: start).Opera: Implemented as a non-standard, prefixed, version of ruby-position, -webkit-ruby-position: it has two properties: before and after (both equivalent, for ltr and rtl scripts to the standard over value used with ruby-align: start).Opera Android: Implemented as a non-standard, prefixed, version of ruby-position, -webkit-ruby-position: it has two properties: before and after (both equivalent, for ltr and rtl scripts to the standard over value used with ruby-align: start).Safari: Implemented as a non-standard, prefixed, version of ruby-position, -webkit-ruby-position: it has two properties: before and after (both equivalent, for ltr and rtl scripts to the standard over value used with ruby-align: start).Safari on iOS: Implemented as a non-standard, prefixed, version of ruby-position, -webkit-ruby-position: it has two properties: before and after (both equivalent, for ltr and rtl scripts to the standard over value used with ruby-align: start).WebView Android: Implemented as a non-standard, prefixed, version of ruby-position, -webkit-ruby-position: it has two properties: before and after (both equivalent, for ltr and rtl scripts to the standard over value used with ruby-align: start).WebView on iOS: Implemented as a non-standard, prefixed, version of ruby-position, -webkit-ruby-position: it has two properties: before and after (both equivalent, for ltr and rtl scripts to the standard over value used with ruby-align: start).
css.properties.ruby-position.over Firefox1/7/2020 Chrome7/27/2020202
css.properties.ruby-position.under Firefox1/7/2020 Chrome7/27/2020202
css.properties.rx 📋Firefox1/7/2020 Chrome2/4/202028
Safari: The value is recognized, but has no effect. This property is only recognized as an attribute applied to the SVG element. See bug 266090.Safari on iOS: The value is recognized, but has no effect. This property is only recognized as an attribute applied to the SVG element. See bug 266090.WebView on iOS: The value is recognized, but has no effect. This property is only recognized as an attribute applied to the SVG element. See bug 266090.
css.properties.ry 📋Firefox1/7/2020 Chrome2/4/202028
Safari: The value is recognized, but has no effect. This property is only recognized as an attribute applied to the SVG element. See bug 266090.Safari on iOS: The value is recognized, but has no effect. This property is only recognized as an attribute applied to the SVG element. See bug 266090.WebView on iOS: The value is recognized, but has no effect. This property is only recognized as an attribute applied to the SVG element. See bug 266090.
css.properties.scale 📋Firefox1/7/2020 Chrome8/2/2022938
css.properties.scale.none 📋Firefox1/7/2020 Chrome8/2/2022938
css.properties.scroll-behavior 📋Firefox2/24/2015 Chrome9/5/2017924
css.properties.scroll-behavior.auto 📋Firefox2/24/2015 Chrome9/5/2017924
css.properties.scroll-behavior.smooth 📋Firefox2/24/2015 Chrome9/5/2017924
css.properties.scroll-margin 📋Chrome9/4/2018 Firefox7/13/20211043
Firefox: The scroll-margin property can cause an element's visibility to be incorrectly calculated for element.focus(). See bug 1708303.Firefox for Android: The scroll-margin property can cause an element's visibility to be incorrectly calculated for element.focus(). See bug 1708303.Safari: Before version 14.1, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.Safari on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.WebView on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.
css.properties.scroll-margin-block 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-margin-block-end 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-margin-block-start 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-margin-bottom 📋Chrome9/4/2018 Firefox7/9/2019308
Safari: Before version 14.1, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.Safari on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.WebView on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.
css.properties.scroll-margin-inline 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-margin-inline-end 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-margin-inline-start 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-margin-left 📋Chrome9/4/2018 Firefox7/9/2019308
Safari: Before version 14.1, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.Safari on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.WebView on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.
css.properties.scroll-margin-right 📋Chrome9/4/2018 Firefox7/9/2019308
Safari: Before version 14.1, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.Safari on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.WebView on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.
css.properties.scroll-margin-top 📋Chrome9/4/2018 Firefox7/9/2019308
Safari: Before version 14.1, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.Safari on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.WebView on iOS: Before version 14.5, scroll margin is not applied for scrolls to fragment target or scrollIntoView(), see bug 189265.
css.properties.scroll-padding 📋Chrome9/4/2018 Firefox7/9/2019308
Safari: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.Safari on iOS: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.WebView on iOS: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.
css.properties.scroll-padding.auto 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-padding-block 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-padding-block.auto 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-padding-block-end 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-padding-block-end.auto 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-padding-block-start 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-padding-block-start.auto 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-padding-bottom 📋Chrome9/4/2018 Firefox7/9/2019308
Safari: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.Safari on iOS: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.WebView on iOS: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.
css.properties.scroll-padding-inline 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-padding-inline.auto 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-padding-inline-end 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-padding-inline-end.auto 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-padding-inline-start 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-padding-inline-start.auto 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-padding-left 📋Chrome9/4/2018 Firefox7/9/2019308
Safari: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.Safari on iOS: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.WebView on iOS: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.
css.properties.scroll-padding-right 📋Chrome9/4/2018 Firefox7/9/2019308
Safari: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.Safari on iOS: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.WebView on iOS: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.
css.properties.scroll-padding-top 📋Chrome9/4/2018 Firefox7/9/2019308
Safari: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.Safari on iOS: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.WebView on iOS: Scroll padding is not applied for scrolls to fragment target or scrollIntoView(), see bug 179379.
css.properties.scroll-snap-align 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-snap-align.center 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-snap-align.end 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-snap-align.none 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-snap-align.start 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-snap-stop 📋Chrome6/4/2019 Firefox7/26/20221148
css.properties.scroll-snap-stop.always 📋Chrome6/4/2019 Firefox7/26/20221148
css.properties.scroll-snap-stop.normal 📋Chrome6/4/2019 Firefox7/26/20221148
css.properties.scroll-snap-type 📋Chrome9/4/2018 Firefox4/5/20221309
Edge: Edge supports an earlier draft of CSS Scroll Snap without axis values.Firefox: On macOS Monterey, scroll snapping does not complete reliably. See bug 1749352.Firefox: An earlier draft of CSS Scroll Snap without axis values.Firefox for Android: An earlier draft of CSS Scroll Snap without axis values.Internet Explorer: Internet Explorer supports an earlier draft of CSS Scroll Snap without axis values.Safari: Older Safari versions support an earlier draft of CSS Scroll Snap without axis values.Safari on iOS: Older Safari on iOS versions support an earlier draft of CSS Scroll Snap without axis values.WebView on iOS: Older WebView on iOS versions support an earlier draft of CSS Scroll Snap without axis values.
css.properties.scroll-snap-type.block 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-snap-type.both 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-snap-type.inline 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-snap-type.none 📋Firefox7/2/2015 Chrome9/4/20181160
css.properties.scroll-snap-type.x 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-snap-type.y 📋Chrome9/4/2018 Firefox7/9/2019308
css.properties.scroll-timeline 📋Firefox3/14/2023 Chrome7/18/2023126
Firefox: The syntax of the shorthand property uses the fixed order of name and then the axis.Firefox: Supports the deprecated horizontal and vertical axis values, and not the x and y values.Firefox: The @scroll-timeline at-rule is replaced with the longhand properties scroll-timeline-name and scroll-timeline-axis and the shorthand property scroll-timeline.
css.properties.scroll-timeline-axis 📋Firefox3/14/2023 Chrome7/18/2023126
Firefox: The syntax of the shorthand property uses the fixed order of name and then the axis.Firefox: Supports the deprecated horizontal and vertical values, and not the x and y values.Firefox: The @scroll-timeline at-rule is replaced with the longhand properties scroll-timeline-name and scroll-timeline-axis and the shorthand property scroll-timeline.
css.properties.scroll-timeline-name 📋Firefox3/14/2023 Chrome7/18/2023126
Firefox: The syntax of the shorthand property uses the fixed order of name and then the axis.Firefox: The @scroll-timeline at-rule is replaced with the longhand properties scroll-timeline-name and scroll-timeline-axis and the shorthand property scroll-timeline.
css.properties.scrollbar-color 📋Firefox12/11/2018 Chrome1/23/20241869
css.properties.scrollbar-color.auto 📋Firefox12/11/2018 Chrome1/23/20241869
css.properties.scrollbar-gutter 📋Chrome9/21/2021 Firefox2/8/2022140
css.properties.scrollbar-gutter.auto 📋Chrome9/21/2021 Firefox2/8/2022140
css.properties.scrollbar-gutter.stable 📋Chrome9/21/2021 Firefox2/8/2022140
css.properties.scrollbar-width 📋Firefox12/11/2018 Chrome1/23/20241869
css.properties.scrollbar-width.auto 📋Firefox12/11/2018 Chrome1/23/20241869
css.properties.scrollbar-width.none 📋Firefox12/11/2018 Chrome1/23/20241869
css.properties.scrollbar-width.thin 📋Firefox12/11/2018 Chrome1/23/20241869
css.properties.shape-image-threshold 📋Chrome8/26/2014 Firefox9/5/20181471
css.properties.shape-image-threshold.percentages Chrome10/22/2019 Firefox10/22/2019
css.properties.shape-margin 📋Chrome8/26/2014 Firefox9/5/20181471
css.properties.shape-outside 📋Chrome8/26/2014 Firefox9/5/20181471
css.properties.shape-outside.circle Chrome8/26/2014 Firefox9/5/20181471
css.properties.shape-outside.gradient 📋Chrome8/26/2014 Firefox9/5/20181471
css.properties.shape-outside.image 📋Chrome8/26/2014 Firefox9/5/20181471
css.properties.shape-outside.inset Chrome8/26/2014 Firefox9/5/20181471
css.properties.shape-outside.none 📋Chrome8/26/2014 Firefox9/5/20181471
css.properties.shape-outside.polygon Chrome8/26/2014 Firefox9/5/20181471
css.properties.shape-rendering 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.stop-color 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.stop-opacity 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.stroke 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.stroke-dasharray 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.stroke-dasharray.none 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.stroke-dashoffset 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.stroke-linecap 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.stroke-linecap.butt 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.stroke-linecap.round 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.stroke-linecap.square 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.stroke-linejoin 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.stroke-linejoin.bevel 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.stroke-linejoin.miter 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.stroke-linejoin.round 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.stroke-miterlimit 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.stroke-opacity 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.stroke-width 📋Firefox11/9/2004 Chrome2/4/20205565
css.properties.tab-size 📋Chrome7/31/2012 Firefox8/10/20213297
Chrome: This property is not yet animatable.Chrome Android: This property is not yet animatable.Edge: This property is not yet animatable.Firefox: Before Firefox 53, this property was not animatable.Firefox for Android: Before Firefox for Android 53, this property was not animatable.Quest Browser: This property is not yet animatable.Samsung Internet: This property is not yet animatable.
css.properties.tab-size.length 📋Chrome4/14/2015 Firefox4/19/2017736
css.properties.table-layout 📋Firefox11/9/2004 Chrome9/16/20112502
css.properties.text-align 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.text-align.center 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.text-align.end 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.text-align.justify 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.text-align.left 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.text-align.match-parent 📋Chrome12/13/2011 Firefox8/11/20151337
css.properties.text-align.right 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.text-align.start 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.text-align-last 📋Chrome12/1/2015 Firefox9/20/2016294
Internet Explorer: IE only supports text-align-last when text-align is set to justify.Internet Explorer: The start and end values are not supported.
css.properties.text-align-last.auto 📋Firefox4/24/2012 Chrome12/1/20151316
css.properties.text-anchor 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.text-combine-upright 📋Chrome1/20/2016 Firefox8/2/2016195
Chrome: This property was initially named -webkit-text-combine according to a 2011 version of the CSS3 Writing Modes specification, supporting the values none and horizontal without digits.Chrome Android: This property was initially named -webkit-text-combine according to a 2011 version of the CSS3 Writing Modes specification, supporting the values none and horizontal without digits.Firefox: Before version 81, Firefox implemented the property as animatable. This was corrected to spec in 81.Firefox for Android: Before version 81, Firefox for Android implemented the property as animatable. This was corrected to spec in 81.Quest Browser: This property was initially named -webkit-text-combine according to a 2011 version of the CSS3 Writing Modes specification, supporting the values none and horizontal without digits.Opera: This property was initially named -webkit-text-combine according to a 2011 version of the CSS3 Writing Modes specification, supporting the values none and horizontal without digits.Opera Android: This property was initially named -webkit-text-combine according to a 2011 version of the CSS3 Writing Modes specification, supporting the values none and horizontal without digits.Safari: This property was initially named -webkit-text-combine according to a 2011 version of the CSS3 Writing Modes specification, supporting the values none and horizontal without digits.Safari on iOS: This property was initially named -webkit-text-combine according to a 2011 version of the CSS3 Writing Modes specification, supporting the values none and horizontal without digits.Samsung Internet: This property was initially named -webkit-text-combine according to a 2011 version of the CSS3 Writing Modes specification, supporting the values none and horizontal without digits.WebView Android: This property was initially named -webkit-text-combine according to a 2011 version of the CSS3 Writing Modes specification, supporting the values none and horizontal without digits.WebView on iOS: This property was initially named -webkit-text-combine according to a 2011 version of the CSS3 Writing Modes specification, supporting the values none and horizontal without digits.
css.properties.text-decoration 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.text-decoration.includes_color-and-style Firefox8/16/2011 Chrome3/9/20172032
css.properties.text-decoration.includes_thickness Firefox10/22/2019 Chrome11/17/2020392
css.properties.text-decoration-color 📋Firefox2/24/2015 Chrome3/9/2017744
css.properties.text-decoration-line 📋Firefox2/24/2015 Chrome3/9/2017744
css.properties.text-decoration-line.blink 📋Firefox12/10/2013 Chrome3/9/20171185
Chrome: The blink value does not have any effect.Chrome Android: The blink value does not have any effect.Edge: The blink value does not have any effect.Firefox: The blink value does not have any effect.Firefox for Android: The blink value does not have any effect.Quest Browser: The blink value does not have any effect.Samsung Internet: The blink value does not have any effect.WebView Android: The blink value does not have any effect.
css.properties.text-decoration-line.line-through 📋Firefox8/16/2011 Chrome3/9/20172032
css.properties.text-decoration-line.none 📋Firefox8/16/2011 Chrome3/9/20172032
css.properties.text-decoration-line.overline 📋Firefox8/16/2011 Chrome3/9/20172032
css.properties.text-decoration-line.underline 📋Firefox8/16/2011 Chrome3/9/20172032
css.properties.text-decoration-skip-ink 📋Chrome1/23/2018 Firefox10/22/2019637
css.properties.text-decoration-skip-ink.auto 📋Chrome1/23/2018 Firefox10/22/2019637
css.properties.text-decoration-skip-ink.none 📋Chrome1/23/2018 Firefox10/22/2019637
css.properties.text-decoration-style 📋Firefox2/24/2015 Chrome3/9/2017744
css.properties.text-decoration-style.wavy Firefox8/16/2011 Chrome3/9/20172032
css.properties.text-decoration-thickness 📋Firefox10/22/2019 Chrome3/2/2021497
Chrome: The text-decoration-thickness property does not work unless either text-underline-offset is set to something other than auto or text-decoration-color is set to something other than currentColor. See bug 40734940.Chrome Android: The text-decoration-thickness property does not work unless either text-underline-offset is set to something other than auto or text-decoration-color is set to something other than currentColor. See bug 40734940.Edge: The text-decoration-thickness property does not work unless either text-underline-offset is set to something other than auto or text-decoration-color is set to something other than currentColor. See bug 40734940.Quest Browser: The text-decoration-thickness property does not work unless either text-underline-offset is set to something other than auto or text-decoration-color is set to something other than currentColor. See bug 40734940.Opera: The text-decoration-thickness property does not work unless either text-underline-offset is set to something other than auto or text-decoration-color is set to something other than currentColor. See bug 40734940.Opera Android: The text-decoration-thickness property does not work unless either text-underline-offset is set to something other than auto or text-decoration-color is set to something other than currentColor. See bug 40734940.Samsung Internet: The text-decoration-thickness property does not work unless either text-underline-offset is set to something other than auto or text-decoration-color is set to something other than currentColor. See bug 40734940.WebView Android: The text-decoration-thickness property does not work unless either text-underline-offset is set to something other than auto or text-decoration-color is set to something other than currentColor. See bug 40734940.
css.properties.text-decoration-thickness.auto 📋Firefox10/22/2019 Chrome11/17/2020392
css.properties.text-decoration-thickness.from-font 📋Firefox10/22/2019 Chrome11/17/2020392
css.properties.text-decoration-thickness.percentage Firefox3/10/2020 Chrome11/17/2020252
css.properties.text-emphasis 📋Firefox4/26/2016 Chrome3/1/20222135
css.properties.text-emphasis-color 📋Firefox4/26/2016 Chrome3/1/20222135
css.properties.text-emphasis-position 📋Firefox4/26/2016 Chrome3/1/20222135
css.properties.text-emphasis-position.left Firefox4/26/2016 Chrome10/17/2017539
css.properties.text-emphasis-position.over Chrome3/1/2022 Firefox12/13/2022287
css.properties.text-emphasis-position.right Firefox4/26/2016 Chrome10/17/2017539
css.properties.text-emphasis-position.under Chrome3/1/2022 Firefox12/13/2022287
css.properties.text-emphasis-style 📋Firefox4/26/2016 Chrome3/1/20222135
css.properties.text-emphasis-style.circle 📋Firefox1/7/2020 Chrome3/1/2022784
css.properties.text-emphasis-style.dot 📋Firefox1/7/2020 Chrome3/1/2022784
css.properties.text-emphasis-style.double-circle 📋Firefox1/7/2020 Chrome3/1/2022784
css.properties.text-emphasis-style.filled 📋Firefox1/7/2020 Chrome3/1/2022784
css.properties.text-emphasis-style.none 📋Firefox1/7/2020 Chrome3/1/2022784
css.properties.text-emphasis-style.sesame 📋Firefox1/7/2020 Chrome3/1/2022784
css.properties.text-emphasis-style.triangle 📋Firefox1/7/2020 Chrome3/1/2022784
css.properties.text-indent 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.text-justify 📋Chrome1/14/2014 Firefox8/8/20171302
Chrome: inter-word and distribute (deprecated) values are supported, but distribute behavior is buggy.Chrome Android: inter-word and distribute (deprecated) values are supported, but distribute behavior is buggy.Edge: inter-word and distribute (deprecated) values are supported, but distribute behavior is buggy.Edge: Standard values inter-character and none are supported. The deprecated distribute value is also supported.Internet Explorer: Standard values inter-character and none are supported. The deprecated distribute value is also supported.Quest Browser: inter-word and distribute (deprecated) values are supported, but distribute behavior is buggy.Opera: inter-word and distribute (deprecated) values are supported, but distribute behavior is buggy.
css.properties.text-orientation 📋Firefox9/22/2015 Chrome1/20/2016120
css.properties.text-orientation.mixed 📋Firefox1/7/2020 Chrome5/19/2020133
css.properties.text-orientation.sideways 📋Chrome2/21/2013 Firefox1/26/20161069
css.properties.text-orientation.upright 📋Firefox1/7/2020 Chrome5/19/2020133
css.properties.text-overflow 📋Chrome12/11/2008 Firefox9/27/20111020
Firefox: Until Firefox 10, handling of text-overflow on blocks with inline overflow on both horizontal sides was incorrect. Before Firefox 10, if only one value was specified (such as text-overflow: ellipsis;), text was ellipsed on both sides of the block, instead of only the end edge based on the block's text direction.Firefox for Android: Until Firefox for Android 10, handling of text-overflow on blocks with inline overflow on both horizontal sides was incorrect. Before Firefox for Android 10, if only one value was specified (such as text-overflow: ellipsis;), text was ellipsed on both sides of the block, instead of only the end edge based on the block's text direction.
css.properties.text-overflow.clip 📋Chrome12/11/2008 Firefox9/27/20111020
css.properties.text-overflow.ellipsis 📋Chrome12/11/2008 Firefox9/27/20111020
css.properties.text-rendering 📋Firefox11/9/2004 Chrome1/25/20101903
Chrome: This property is only supported on Windows and Linux.Chrome: Initial versions had bugs on Windows and Linux that broke font substitution, small-caps, letter-spacing or caused text to overlap. See bug 40156511, bug 40430936, bug 40444347, bug 40286561.Chrome Android: This property is only supported on Windows and Linux.Chrome Android: Initial versions had bugs on Windows and Linux that broke font substitution, small-caps, letter-spacing or caused text to overlap. See bug 40156511, bug 40430936, bug 40444347, bug 40286561.Edge: This property is only supported on Windows and Linux.Edge: Initial versions had bugs on Windows and Linux that broke font substitution, small-caps, letter-spacing or caused text to overlap. See bug 40156511, bug 40430936, bug 40444347, bug 40286561.Firefox: This property is only supported on Windows and Linux.Firefox: The optimizeSpeed option has no effect on Firefox 4 because the standard code for text rendering is already fast and there is not a faster code path at this time. See bug 595688 for details.Quest Browser: This property is only supported on Windows and Linux.Quest Browser: Initial versions had bugs on Windows and Linux that broke font substitution, small-caps, letter-spacing or caused text to overlap. See bug 40156511, bug 40430936, bug 40444347, bug 40286561.Samsung Internet: This property is only supported on Windows and Linux. Samsung Internet is not on Windows or Linux.WebView Android: From version 3 to 4.3, there is a serious bug where text-rendering: optimizeLegibility causes custom web fonts to not render. This was fixed in version 4.4.
css.properties.text-rendering.auto Firefox11/9/2004 Chrome1/25/20101903
Chrome: Chrome treats auto as optimizeSpeed.Chrome Android: Chrome Android treats auto as optimizeSpeed.Edge: Edge treats auto as optimizeSpeed.Firefox: If the font size is 20 pixels or higher, Firefox treats auto as optimizeLegibility. For smaller text, Firefox treats auto as optimizeSpeed. The 20-pixel threshold can be changed with the browser.display.auto_quality_min_font_size preference.Firefox for Android: If the font size is 20 pixels or higher, Firefox treats auto as optimizeLegibility. For smaller text, Firefox treats auto as optimizeSpeed. The 20-pixel threshold can be changed with the browser.display.auto_quality_min_font_size preference.Quest Browser: Quest Browser treats auto as optimizeSpeed.Opera: Opera treats auto as optimizeSpeed.Opera Android: Opera Android treats auto as optimizeSpeed.Safari: Safari treats auto as optimizeSpeed. See bug 41363.Safari on iOS: Safari on iOS treats auto as optimizeSpeed. See bug 41363.Samsung Internet: Samsung Internet treats auto as optimizeSpeed.WebView Android: WebView Android treats auto as optimizeSpeed.WebView on iOS: WebView on iOS treats auto as optimizeSpeed. See bug 41363.
css.properties.text-rendering.geometricPrecision Firefox11/9/2004 Chrome8/2/20112457
Chrome: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.Chrome Android: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.Edge: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.Firefox: Firefox treats geometricPrecision the same as optimizeLegibility.Firefox for Android: Firefox treats geometricPrecision the same as optimizeLegibility.Quest Browser: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.Opera: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.Opera Android: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.Samsung Internet: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.WebView Android: Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system.
css.properties.text-shadow 📋Chrome5/21/2009 Firefox6/30/200940
Firefox: Firefox versions before 57 have a bug whereby transitions will not work when transitioning from a text-shadow with a color specified to a text-shadow without a color specified (bug 726550).Firefox: From Firefox 4, the blur radius is capped at 300 for performance reasons.Firefox: Firefox theoretically supports infinite text-shadows (don't try it).Firefox: If the <color> value is unspecified, then Firefox uses the value of the element's color property.Firefox for Android: Firefox for Android versions before 57 have a bug whereby transitions will not work when transitioning from a text-shadow with a color specified to a text-shadow without a color specified (bug 726550).Firefox for Android: From Firefox for Android 4, the blur radius is capped at 300 for performance reasons.Firefox for Android: Firefox for Android theoretically supports infinite text-shadows (don't try it).Firefox for Android: If the <color> value is unspecified, then Firefox for Android uses the value of the element's color property.Opera: Opera supports a maximum of 6-9 text-shadows for performance reasons. The blur radius is limited to 100px.Opera: Opera 9.5 to 10.1 adheres to the old, reverse painting order (in CSS2, the first specified shadow is on the bottom).Safari: In Safari, any shadows that do not explicitly specify a color are transparent.Safari: Safari 1.1 to 3.2 only supports one text-shadow (displays the first shadow of a comma-separated list and ignores the rest). Safari 4.0 (WebKit 528) and later support multiple text-shadows.Safari on iOS: In Safari, any shadows that do not explicitly specify a color are transparent.Safari on iOS: Safari iOS 1 and 2 only support one text-shadow (displays the first shadow of a comma-separated list and ignores the rest). Safari iOS 3 (WebKit 528) and later support multiple text-shadows.WebView on iOS: In Safari, any shadows that do not explicitly specify a color are transparent.WebView on iOS: Safari iOS 1 and 2 only support one text-shadow (displays the first shadow of a comma-separated list and ignores the rest). Safari iOS 3 (WebKit 528) and later support multiple text-shadows.
css.properties.text-transform 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: The text-transform property does not work for ::first-line pseudo-elements (nor for the one-colon syntax). See bug 40214861.Chrome Android: The text-transform property does not work for ::first-line pseudo-elements (nor for the one-colon syntax). See bug 40214861.Quest Browser: The text-transform property does not work for ::first-line pseudo-elements (nor for the one-colon syntax). See bug 40214861.Opera: Since Opera 15, the text-transform property does not work for ::first-line pseudo-elements (nor for the one-colon syntax). See bug 40214861.Safari: The text-transform property does not work for ::first-line pseudo-elements (also not for the old one-colon syntax). See bug 3409.Safari on iOS: The text-transform property does not work for ::first-line pseudo-elements (also not for the old one-colon syntax). See bug 3409.Samsung Internet: The text-transform property does not work for ::first-line pseudo-elements (nor for the one-colon syntax). See bug 40214861.WebView Android: The text-transform property does not work for ::first-line pseudo-elements (nor for the one-colon syntax). See bug 40214861.WebView on iOS: The text-transform property does not work for ::first-line pseudo-elements (also not for the old one-colon syntax). See bug 3409.
css.properties.text-transform.capitalize 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Before Firefox 14, some punctuation characters could interfere with correct capitalization. See bug 731536.Firefox for Android: Before Firefox for Android 14, some punctuation characters could interfere with correct capitalization. See bug 731536.
css.properties.text-transform.greek_accented_characters Firefox8/28/2012 Chrome4/8/2014588
css.properties.text-transform.lowercase 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.text-transform.lowercase_sigma Firefox7/17/2012 Chrome10/1/2013441
css.properties.text-transform.math-auto 📋Chrome1/10/2023 Firefox8/29/2023231
css.properties.text-transform.none 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.text-transform.turkic_is Firefox7/17/2012 Chrome11/12/2013483
css.properties.text-transform.uppercase 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.text-transform.uppercase_eszett Firefox11/9/2004 Chrome12/11/20081493
css.properties.text-underline-offset 📋Firefox10/22/2019 Chrome11/17/2020392
css.properties.text-underline-offset.auto 📋Firefox10/22/2019 Chrome11/17/2020392
css.properties.text-underline-offset.percentage 📋Firefox3/10/2020 Chrome11/17/2020252
css.properties.text-underline-position 📋Chrome2/20/2014 Firefox3/10/20202210
css.properties.text-underline-position.from-font Firefox3/10/2020 Chrome11/17/2020252
css.properties.text-underline-position.left Chrome12/4/2018 Firefox3/10/2020462
css.properties.text-underline-position.right Chrome12/4/2018 Firefox3/10/2020462
css.properties.text-underline-position.under Chrome2/20/2014 Firefox3/10/20202210
css.properties.text-wrap 📋Chrome5/30/2023 Firefox12/19/2023203
css.properties.text-wrap.balance 📋Chrome5/30/2023 Firefox12/19/2023203
css.properties.text-wrap.nowrap 📋Chrome5/30/2023 Firefox3/19/2024294
css.properties.text-wrap.stable 📋Firefox12/19/2023 Chrome10/15/2024301
css.properties.text-wrap.wrap 📋Chrome5/30/2023 Firefox3/19/2024294
css.properties.text-wrap-mode 📋Firefox3/19/2024 Chrome10/15/2024210
css.properties.text-wrap-mode.nowrap Firefox3/19/2024 Chrome10/15/2024210
css.properties.text-wrap-mode.wrap Firefox3/19/2024 Chrome10/15/2024210
css.properties.text-wrap-style 📋Firefox3/19/2024 Chrome10/15/2024210
css.properties.text-wrap-style.auto 📋Firefox3/19/2024 Chrome10/15/2024210
css.properties.text-wrap-style.balance 📋Firefox3/19/2024 Chrome10/15/2024210
css.properties.text-wrap-style.stable 📋Firefox3/19/2024 Chrome10/15/2024210
css.properties.top 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: In Internet Explorer versions before 7, when both top and bottom are specified, the element position is overconstrained and the top property has precedence; the computed value of bottom is set to -top, while its specified value is ignored.
css.properties.top.auto 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.touch-action 📋Chrome7/16/2014 Firefox3/7/2017965
Firefox: Not applicable to Firefox platforms that support neither pointer nor touch events.
css.properties.touch-action.manipulation Chrome7/16/2014 Firefox3/7/2017965
Firefox: Not applicable to Firefox platforms that support neither pointer nor touch events.
css.properties.touch-action.none Chrome7/16/2014 Firefox3/7/2017965
Firefox: Not applicable to Firefox platforms that support neither pointer nor touch events.
css.properties.touch-action.pan-x Chrome7/16/2014 Firefox3/7/2017965
Firefox: Not applicable to Firefox platforms that support neither pointer nor touch events.
css.properties.touch-action.pan-y Chrome7/16/2014 Firefox3/7/2017965
Firefox: Not applicable to Firefox platforms that support neither pointer nor touch events.
css.properties.touch-action.pinch-zoom Chrome1/25/2017 Firefox1/26/20211462
Firefox: Not applicable to Firefox platforms that support neither pointer nor touch events.Firefox for Android: Not applicable to Firefox for Android platforms that support neither pointer nor touch events.
css.properties.transform 📋Firefox10/9/2012 Chrome7/16/2014645
Internet Explorer: Internet Explorer does not support the global values initial and unset.Internet Explorer: Internet Explorer 5.5 or later supports a proprietary Matrix Filter which can be used to achieve a similar effect.WebView Android: Android 2.3 has a bug where input forms will "jump" when typing, if any container element has a -webkit-transform.
css.properties.transform.3d Chrome6/7/2011 Firefox10/9/2012490
css.properties.transform-box 📋Firefox8/8/2017 Chrome1/23/2018168
css.properties.transform-box.border-box 📋Firefox8/8/2017 Chrome10/10/20232254
css.properties.transform-box.content-box 📋Chrome10/10/2023 Firefox4/16/2024189
css.properties.transform-box.fill-box 📋Firefox8/8/2017 Chrome1/23/2018168
css.properties.transform-box.stroke-box 📋Chrome10/10/2023 Firefox4/16/2024189
css.properties.transform-box.view-box 📋Firefox8/8/2017 Chrome1/23/2018168
css.properties.transform-origin 📋Firefox10/9/2012 Chrome7/16/2014645
css.properties.transform-origin.bottom 📋Chrome12/11/2008 Firefox1/7/20204044
css.properties.transform-origin.center 📋Chrome12/11/2008 Firefox1/7/20204044
css.properties.transform-origin.left 📋Chrome12/11/2008 Firefox1/7/20204044
css.properties.transform-origin.right 📋Chrome12/11/2008 Firefox1/7/20204044
css.properties.transform-origin.svg_elements Chrome5/15/2012 Firefox12/15/20151309
Firefox: Keywords and percentages refer to the canvas instead of the object itself. See bug 1209061.Firefox for Android: Keywords and percentages refer to the canvas instead of the object itself. See bug 1209061.Safari: Only supported for transformations applied using the CSS transform property (e.g. .className { transform: rotate(45deg); transform-origin: center; }). It has no effect on transformations applied using the transform SVG attribute (e.g. <rect style="transform-origin: center;" transform="rotate(45)" />).Safari on iOS: Only supported for transformations applied using the CSS transform property (e.g. .className { transform: rotate(45deg); transform-origin: center; }). It has no effect on transformations applied using the transform SVG attribute (e.g. <rect style="transform-origin: center;" transform="rotate(45)" />).WebView on iOS: Only supported for transformations applied using the CSS transform property (e.g. .className { transform: rotate(45deg); transform-origin: center; }). It has no effect on transformations applied using the transform SVG attribute (e.g. <rect style="transform-origin: center;" transform="rotate(45)" />).
css.properties.transform-origin.three_value_syntax Chrome6/7/2011 Firefox1/31/2012238
css.properties.transform-origin.top 📋Chrome12/11/2008 Firefox1/7/20204044
css.properties.transform-style 📋Firefox10/9/2012 Chrome7/16/2014645
css.properties.transition 📋Firefox10/9/2012 Chrome3/26/2013168
Firefox: Before Firefox 57, transitions do not work when transitioning from a text-shadow with a color specified to a text-shadow without a color specified (see bug 726550).Firefox: Before Firefox 57, cancelling a filling animation (for example, with animation-fill-mode: forwards set) can trigger a transition set on the same element, although only once (see bug 1192592 and these test cases for more information).Firefox: Before Firefox 57, the background-position property can't be transitioned between two values containing different numbers of <position> values, for example background-position: 10px 10px; and background-position: 20px 20px, 30px 30px; (see bug 1390446).Firefox for Android: Before Firefox for Android 57, transitions do not work when transitioning from a text-shadow with a color specified to a text-shadow without a color specified (see bug 726550).Firefox for Android: Before Firefox for Android 57, cancelling a filling animation (for example, with animation-fill-mode: forwards set) can trigger a transition set on the same element, although only once (see bug 1192592 and these test cases for more information).Firefox for Android: Before Firefox for Android 57, the background-position property can't be transitioned between two values containing different numbers of <position> values, for example background-position: 10px 10px; and background-position: 20px 20px, 30px 30px; (see bug 1390446).
css.properties.transition.transition-behavior Chrome9/12/2023 Firefox8/6/2024329
css.properties.transition-behavior 📋Chrome9/12/2023 Firefox8/6/2024329
css.properties.transition-delay 📋Firefox10/9/2012 Chrome3/26/2013168
css.properties.transition-duration 📋Firefox10/9/2012 Chrome3/26/2013168
css.properties.transition-property 📋Firefox10/9/2012 Chrome3/26/2013168
css.properties.transition-property.IDENT_value Chrome12/11/2008 Firefox10/9/20121398
css.properties.transition-property.all 📋Chrome12/11/2008 Firefox3/22/2011831
css.properties.transition-property.none 📋Chrome12/11/2008 Firefox3/22/2011831
css.properties.transition-timing-function 📋Firefox10/9/2012 Chrome3/26/2013168
css.properties.transition-timing-function.jump Firefox1/29/2019 Chrome9/10/2019224
css.properties.translate 📋Firefox1/7/2020 Chrome8/2/2022938
css.properties.translate.none 📋Firefox1/7/2020 Chrome8/2/2022938
css.properties.unicode-bidi 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.unicode-bidi.bidi-override 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.unicode-bidi.embed 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.unicode-bidi.isolate 📋Chrome1/20/2016 Firefox11/15/2016300
Chrome: Before Chrome 47, -webkit-isolate could lock up the browser.Chrome: Since Chrome 19, the syntax from a previous version of the specification, where the isolate keyword could be used together with bidi-override, is allowed.Firefox: From Firefox 10 to Firefox 16 (inclusive), the isolate keyword could be used together with bidi-override, which was the syntax from a previous version of the specification. From Firefox 17, only one value is allowed. Use isolate-override instead the previous isolate bidi-override.Firefox for Android: From Firefox for Android 10 to Firefox for Android 16 (inclusive), the isolate keyword could be used together with bidi-override, which was the syntax from a previous version of the specification. From Firefox for Android 17, only one value is allowed. Use isolate-override instead the previous isolate bidi-override.Opera: Before Opera 34, -webkit-isolate could lock up the browser.Opera: Since Opera 15, the syntax from a previous version of the specification, where the isolate keyword could be used together with bidi-override, is allowed.Safari: Before Safari 9, -webkit-isolate could lock up the browser.Safari on iOS: Before Safari on iOS 9, -webkit-isolate could lock up the browser.WebView on iOS: Before WebView on iOS 9, -webkit-isolate could lock up the browser.
css.properties.unicode-bidi.isolate-override 📋Chrome1/20/2016 Firefox11/15/2016300
css.properties.unicode-bidi.normal 📋Firefox11/9/2004 Chrome5/21/20091654
css.properties.unicode-bidi.plaintext 📋Chrome1/20/2016 Firefox11/15/2016300
Firefox: Before Firefox 50, the plaintext value was ignored for vertical writing modes (bug 1302734).Firefox: Before Firefox 15, plaintext didn't do anything to an inline element. The specification changed and the implementation was changed in Firefox 15.Firefox for Android: Before Firefox for Android 50, the plaintext value was ignored for vertical writing modes (bug 1302734).Firefox for Android: Before Firefox for Android 15, plaintext didn't do anything to an inline element. The specification changed and the implementation was changed in Firefox for Android 15.
css.properties.user-select 📋Chrome10/12/2016 Firefox9/3/20191056
css.properties.user-select.all Firefox11/9/2004 Chrome8/31/20164313
css.properties.user-select.auto Firefox11/9/2004 Chrome12/11/20081493
css.properties.user-select.none Chrome12/11/2008 Firefox5/14/20131615
css.properties.user-select.text Firefox11/9/2004 Chrome12/11/20081493
css.properties.vector-effect 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.vertical-align 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.vertical-align.baseline 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.vertical-align.bottom 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.vertical-align.middle 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.vertical-align.sub 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.vertical-align.super 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.vertical-align.text-bottom 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.vertical-align.text-top 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.vertical-align.top 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.view-timeline 📋Firefox6/6/2023 Chrome7/18/202342
Firefox: Now supports the x and y values, and also the deprecated horizontal and vertical values.
css.properties.view-timeline-axis 📋Firefox6/6/2023 Chrome7/18/202342
Firefox: Now supports the x and y values, and also the deprecated horizontal and vertical values.
css.properties.view-timeline-name 📋Firefox3/14/2023 Chrome7/18/2023126
css.properties.visibility 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Internet Explorer doesn't support visibility: initial.Internet Explorer: Internet Explorer doesn't support visibility: unset.Internet Explorer: Up to Internet Explorer 7, descendants of hidden elements will still be invisible even if they have visibility set to visible.
css.properties.visibility.collapse 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Chrome treats visibility: collapse like hidden, leaving a white gap.Chrome: Chrome supports the collapse value only on <tr>, <thead>, <tbody>, and <tfoot>, but not on <col> and <colgroup> elements.Chrome Android: Chrome Android treats visibility: collapse like hidden, leaving a white gap.Chrome Android: Chrome Android supports the collapse value only on <tr>, <thead>, <tbody>, and <tfoot>, but not on <col> and <colgroup> elements.Firefox: Firefox doesn't hide borders when hiding <col> and <colgroup> elements if border-collapse: collapse is set.Firefox: Before Firefox 88, collapse is not supported on ruby annotations.Firefox for Android: Firefox for Android doesn't hide borders when hiding <col> and <colgroup> elements if border-collapse: collapse is set.Firefox for Android: Before Firefox for Android 88, collapse is not supported on ruby annotations.Quest Browser: Quest Browser treats visibility: collapse like hidden, leaving a white gap.Quest Browser: Quest Browser supports the collapse value only on <tr>, <thead>, <tbody>, and <tfoot>, but not on <col> and <colgroup> elements.Opera: Opera treats visibility: collapse like hidden, leaving a white gap.Opera: Opera supports the collapse value only on <tr>, <thead>, <tbody>, and <tfoot>, but not on <col> and <colgroup> elements.Opera Android: Opera treats visibility: collapse like hidden, leaving a white gap.Opera Android: Opera supports the collapse value only on <tr>, <thead>, <tbody>, and <tfoot>, but not on <col> and <colgroup> elements.Safari: Safari treats visibility: collapse like hidden, leaving a white gap.Safari: Safari supports the collapse value only on <tr>, <thead>, <tbody>, and <tfoot>, but not on <col> and <colgroup> elements.Safari on iOS: Safari on iOS treats visibility: collapse like hidden, leaving a white gap.Safari on iOS: Safari on iOS supports the collapse value only on <tr>, <thead>, <tbody>, and <tfoot>, but not on <col> and <colgroup> elements.Samsung Internet: Samsung Internet treats visibility: collapse like hidden, leaving a white gap.Samsung Internet: Samsung Internet supports the collapse value only on <tr>, <thead>, <tbody>, and <tfoot>, but not on <col> and <colgroup> elements.WebView Android: WebView Android treats visibility: collapse like hidden, leaving a white gap.WebView Android: WebView Android supports the collapse value only on <tr>, <thead>, <tbody>, and <tfoot>, but not on <col> and <colgroup> elements.WebView on iOS: WebView on iOS treats visibility: collapse like hidden, leaving a white gap.WebView on iOS: WebView on iOS supports the collapse value only on <tr>, <thead>, <tbody>, and <tfoot>, but not on <col> and <colgroup> elements.
css.properties.visibility.hidden 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.visibility.visible 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.white-space 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.white-space.break-spaces 📋Chrome7/30/2019 Firefox9/3/201935
css.properties.white-space.normal 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.white-space.nowrap 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.white-space.pre 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.white-space.pre-line 📋Chrome12/11/2008 Firefox6/30/2009201
css.properties.white-space.pre-wrap 📋Firefox6/17/2008 Chrome12/11/2008177
Internet Explorer: From Internet Explorer 5.5 to 7, word-wrap: break-word; can be used for line breaks in pre elements.
css.properties.white-space.textarea_support Chrome12/11/2008 Firefox2/24/20152266
css.properties.white-space-collapse 📋Chrome5/30/2023 Firefox3/19/2024294
css.properties.white-space-collapse.break-spaces 📋Chrome5/30/2023 Firefox3/19/2024294
css.properties.white-space-collapse.collapse 📋Chrome5/30/2023 Firefox3/19/2024294
css.properties.white-space-collapse.preserve 📋Chrome5/30/2023 Firefox3/19/2024294
css.properties.white-space-collapse.preserve-breaks 📋Chrome5/30/2023 Firefox3/19/2024294
css.properties.width 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.width.auto 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.width.fit-content 📋Chrome10/13/2015 Firefox11/2/20212212
css.properties.width.is_animatable Firefox10/9/2012 Chrome3/26/2013168
css.properties.width.max-content 📋Chrome10/13/2015 Firefox3/19/20191253
css.properties.width.min-content 📋Chrome10/13/2015 Firefox3/19/20191253
css.properties.width.stretch 📋Firefox6/17/2008 Chrome9/25/20121561
css.properties.will-change 📋Chrome7/16/2014 Firefox2/24/2015223
css.properties.will-change.auto 📋Chrome7/16/2014 Firefox2/24/2015223
css.properties.will-change.contents 📋Chrome7/16/2014 Firefox2/24/2015223
css.properties.will-change.scroll-position 📋Chrome7/16/2014 Firefox2/24/2015223
css.properties.word-break 📋Chrome12/11/2008 Firefox8/28/20121356
Internet Explorer: No version of Internet Explorer supports the initial value.Internet Explorer: Don't use -ms-word-break, which is a synonym for word-break.
css.properties.word-break.break-all 📋Chrome12/11/2008 Firefox8/28/20121356
css.properties.word-break.break-word 📋Chrome12/11/2008 Firefox5/21/20193813
css.properties.word-break.keep-all 📋Firefox8/28/2012 Chrome7/21/20151057
css.properties.word-break.normal 📋Chrome12/11/2008 Firefox8/28/20121356
css.properties.word-spacing 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.word-spacing.normal 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.word-spacing.svg_elements Chrome12/11/2008 Firefox1/7/20204044
css.properties.writing-mode 📋Firefox9/22/2015 Chrome1/20/2016120
Firefox: Firefox 42 added support for bidirectional and RTL scripts in vertical modes.Firefox for Android: Firefox for Android 42 added support for bidirectional and RTL scripts in vertical modes.Internet Explorer: Internet Explorer's implementation differs from the specification.Internet Explorer: Internet Explorer's implementation differs from the specification.
css.properties.writing-mode.horizontal-tb Firefox12/15/2015 Chrome1/20/201636
css.properties.writing-mode.lr Firefox12/15/2015 Chrome1/20/201636
css.properties.writing-mode.lr-tb Firefox12/15/2015 Chrome1/20/201636
css.properties.writing-mode.rl Firefox12/15/2015 Chrome1/20/201636
css.properties.writing-mode.rl-tb Firefox12/15/2015 Chrome1/20/201636
css.properties.writing-mode.sideways-lr Firefox12/15/2015 Chrome1/14/20253318
css.properties.writing-mode.sideways-rl Firefox12/15/2015 Chrome1/14/20253318
css.properties.writing-mode.tb Firefox12/15/2015 Chrome1/20/201636
css.properties.writing-mode.tb-rl Firefox12/15/2015 Chrome1/20/201636
css.properties.writing-mode.vertical-lr Firefox12/15/2015 Chrome1/20/201636
css.properties.writing-mode.vertical-rl Firefox12/15/2015 Chrome1/20/201636
css.properties.writing-mode.vertical_oriented_form_controls Firefox11/21/2023 Chrome4/16/2024147
Chrome: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.Chrome: Supported for select, button, textarea and textual input elements.Chrome: Only supported for select and button elements.Chrome Android: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.Chrome Android: Supported for select, button, textarea and textual input elements.Chrome Android: Only supported for select and button elements.Edge: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.Edge: Supported for select, button, textarea and textual input elements.Edge: Only supported for select and button elements.Opera: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.Opera: Supported for select, button, textarea and textual input elements.Opera: Only supported for select and button elements.Opera Android: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.Opera Android: Supported for select, button, textarea and textual input elements.Opera Android: Only supported for select and button elements.Safari: Support for range sliders, textual inputs, and textareas onlySafari on iOS: Support for range sliders, textual inputs, and textareas onlySamsung Internet: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.Samsung Internet: Supported for select, button, textarea and textual input elements.Samsung Internet: Only supported for select and button elements.WebView Android: Supported for select, button, textarea, textual input, range slider, meter, and progress elements.WebView Android: Supported for select, button, textarea and textual input elements.WebView Android: Only supported for select and button elements.WebView on iOS: Support for range sliders, textual inputs, and textareas only
css.properties.x 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.y 📋Firefox1/7/2020 Chrome2/4/202028
css.properties.z-index 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.z-index.auto 📋Firefox11/9/2004 Chrome12/11/20081493
css.properties.z-index.negative_values Firefox6/17/2008 Chrome12/11/2008177
css.properties.zoom 📋Chrome12/11/2008 Firefox5/14/20245633
css.selectors.active 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.active.non_a_elements Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: By default, Safari on iOS does not use the :active state unless there is a touchstart event handler on the relevant element or on the <body> element.WebView on iOS: By default, WebView on iOS does not use the :active state unless there is a touchstart event handler on the relevant element or on the <body> element.
css.selectors.after 📋Firefox11/29/2005 Chrome12/11/20081108
Firefox: Before Firefox 57, Firefox had a bug where ::after pseudo-elements were still generated, even if the content property value were set to normal or none.Firefox: Before Firefox 3.5, only the CSS level 2 behavior of :after was supported, which disallowed position, float, list-style-* and some display properties.Firefox for Android: Before Firefox for Android 57, Firefox for Android had a bug where ::after pseudo-elements were still generated, even if the content property value were set to normal or none.Firefox for Android: Before Firefox for Android 4.5, only the CSS level 2 behavior of :after was supported, which disallowed position, float, list-style-* and some display properties.
css.selectors.after.animation_and_transition_support Firefox3/22/2011 Chrome3/26/2013735
css.selectors.any-link 📋Firefox11/15/2016 Chrome3/6/2018476
css.selectors.any-link.not_match_link Chrome3/6/2018 Firefox3/23/20211113
css.selectors.attribute 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.attribute.case_insensitive_modifier Chrome3/2/2016 Firefox6/7/201697
css.selectors.autofill 📋Firefox2/23/2021 Chrome2/7/2023714
css.selectors.backdrop 📋Chrome8/26/2014 Firefox6/7/2016651
css.selectors.backdrop.dialog Chrome1/14/2014 Firefox3/8/20222975
css.selectors.backdrop.fullscreen Firefox6/7/2016 Chrome9/4/2018819
css.selectors.backdrop.inherit_from_originating_element Firefox11/21/2023 Chrome2/20/202491
css.selectors.backdrop.popover Chrome5/30/2023 Firefox4/16/2024322
css.selectors.before 📋Firefox11/29/2005 Chrome12/11/20081108
Firefox: Before Firefox 57, Firefox had a bug where ::before pseudo-elements were still generated, even if the content property value were set to normal or none.Firefox: Before Firefox 3.5, only the CSS level 2 behavior of :before was supported, which disallowed position, float, list-style-* and some display properties.Firefox for Android: Before Firefox 57, Firefox had a bug where ::before pseudo-elements were still generated, even if the content property value were set to normal or none.
css.selectors.before.animation_and_transition_support Firefox3/22/2011 Chrome3/26/2013735
css.selectors.checked 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: On macOS, styling <option> elements has no effect.Edge: On macOS, styling <option> elements has no effect.Firefox: From Firefox 56, <option> elements cannot be styled.Firefox: On macOS, styling <option> elements has no effect.Firefox for Android: From Firefox 56, <option> elements cannot be styled.Opera: On macOS, styling <option> elements has no effect.Safari: Styling <option> elements has no effect.Safari on iOS: Styling <option> elements has no effect.WebView on iOS: Styling <option> elements has no effect.
css.selectors.child 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Before Internet Explorer 10, the combinator only works in standards mode.
css.selectors.class 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.cue 📋Chrome3/26/2013 Firefox8/8/20171596
Firefox: From Firefox 69, only allowed properties apply to the ::cue pseudo-element with no argument. See Permitted properties for a list of the allowed properties.
css.selectors.default 📋Chrome3/8/2011 Firefox3/22/201114
css.selectors.defined 📋Chrome10/12/2016 Firefox10/23/2018741
css.selectors.descendant 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.dir 📋Firefox9/20/2016 Chrome12/5/20232632
css.selectors.disabled 📋Firefox11/9/2004 Chrome12/11/20081493
Edge: Before Edge 79, Edge did not recognize :disabled on the <fieldset> element.Internet Explorer: Internet Explorer does not recognize :disabled on the <fieldset> element.
css.selectors.empty 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.enabled 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.file-selector-button 📋Firefox10/20/2020 Chrome3/2/2021133
css.selectors.first 📋Chrome3/28/2012 Firefox8/1/20234143
css.selectors.first-child 📋Firefox6/17/2008 Chrome1/25/2010587
Internet Explorer: Internet Explorer 7 doesn't update :first-child styles when elements are added dynamically.Internet Explorer: In Internet Explorer 8, if an element is inserted dynamically by clicking on a link, then the :first-child style isn't applied until the link loses focus.
css.selectors.first-child.no_parent_required Firefox3/7/2017 Chrome3/9/20172
css.selectors.first-letter 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.first-line 📋Firefox11/9/2004 Chrome12/11/20081493
Chrome: Before Chrome 62, the text-transform property does not work on ::first-line pseudo-elements. See bug 40214861.Chrome: Before Chrome 62, the text-transform property does not work on ::first-line pseudo-elements. See bug 40214861.Chrome Android: Before Chrome Android 62, the text-transform property does not work on ::first-line pseudo-elements. See bug 40214861.Chrome Android: Before Chrome Android 62, the text-transform property does not work on ::first-line pseudo-elements. See bug 40214861.Quest Browser: Before Quest Browser 5.0, the text-transform property does not work on ::first-line pseudo-elements. See bug 40214861.Quest Browser: Before Quest Browser 5.0, the text-transform property does not work on ::first-line pseudo-elements. See bug 40214861.Opera: From Opera 15 to Opera 49 (exclusive), the text-transform property does not work on ::first-line or :first-line pseudo-elements. See bug 40214861.Opera: From Opera 15 to Opera 49 (exclusive), the text-transform property does not work on ::first-line or :first-line pseudo-elements. See bug 40214861.Opera Android: From Opera 15 to Opera 49 (exclusive), the text-transform property does not work on ::first-line or :first-line pseudo-elements. See bug 40214861.Opera Android: From Opera 15 to Opera 49 (exclusive), the text-transform property does not work on ::first-line or :first-line pseudo-elements. See bug 40214861.Safari: The text-transform property does not work for ::first-line or :first-line pseudo-elements. See bug 3409.Safari: The text-transform property does not work for ::first-line or :first-line pseudo-elements. See bug 3409.Safari on iOS: The text-transform property does not work for ::first-line or :first-line pseudo-elements. See bug 3409.Safari on iOS: The text-transform property does not work for ::first-line or :first-line pseudo-elements. See bug 3409.Samsung Internet: Before Samsung Internet 8.0, the text-transform property does not work on ::first-line pseudo-elements. See bug 40214861.Samsung Internet: Before Samsung Internet 8.0, the text-transform property does not work on ::first-line pseudo-elements. See bug 40214861.WebView Android: Before WebView 62, the text-transform property does not work on ::first-line pseudo-elements. See bug 40214861.WebView Android: Before WebView 62, the text-transform property does not work on ::first-line pseudo-elements. See bug 40214861.WebView on iOS: The text-transform property does not work for ::first-line or :first-line pseudo-elements. See bug 3409.WebView on iOS: The text-transform property does not work for ::first-line or :first-line pseudo-elements. See bug 3409.
css.selectors.first-of-type 📋Chrome12/11/2008 Firefox6/30/2009201
Edge: Before Edge 16, Microsoft Edge treats all unknown elements (such as custom elements) as the same element type.Internet Explorer: Internet Explorer treats all unknown elements (such as custom elements) as the same element type.
css.selectors.focus 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.focus-visible 📋Chrome10/20/2020 Firefox1/26/202198
css.selectors.focus-within 📋Firefox3/7/2017 Chrome7/25/2017140
css.selectors.fullscreen 📋Chrome12/4/2018 Firefox12/11/20187
Safari on iOS: Only available on iPad, not on iPhone.Safari on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.Safari on iOS: Only available on iPad, not on iPhone.WebView on iOS: Only available on iPad, not on iPhone.WebView on iOS: Shows an overlay button which can not be disabled. Swiping down exits fullscreen mode, making it unsuitable for some use cases like games.WebView on iOS: Only available on iPad, not on iPhone.
css.selectors.has 📋Chrome9/2/2022 Firefox12/19/2023473
css.selectors.host 📋Chrome10/12/2016 Firefox10/23/2018741
css.selectors.hostfunction 📋Chrome10/12/2016 Firefox10/23/2018741
Safari: Certain CSS selectors do not work (:host > .local-child) and styling slotted content (::slotted) is buggy.Safari on iOS: Certain CSS selectors do not work (:host > .local-child) and styling slotted content (::slotted) is buggy.WebView on iOS: Certain CSS selectors do not work (:host > .local-child) and styling slotted content (::slotted) is buggy.
css.selectors.hover 📋Firefox11/9/2004 Chrome12/11/20081493
Safari on iOS: As of Safari for iOS 7.1.2, tapping a clickable element causes the element to enter the :hover state. The element will remain in the :hover state until a different element has entered the :hover state.WebView on iOS: As of Safari for iOS 7.1.2, tapping a clickable element causes the element to enter the :hover state. The element will remain in the :hover state until a different element has entered the :hover state.
css.selectors.hover.a_elements Firefox11/9/2004 Chrome12/11/20081493
css.selectors.hover.all_elements Firefox11/9/2004 Chrome12/11/20081493
Edge: In Edge, hovering over an element and then scrolling up or down without moving the pointer will leave the element in the :hover state until the pointer is moved. See bug 5381673.Internet Explorer: In Internet Explorer 8 to Internet Explorer 11, hovering over an element and then scrolling up or down without moving the pointer will leave the element in the :hover state until the pointer is moved. See bug 926665.Internet Explorer: In Internet Explorer 9 (and possibly earlier), if a <table> has a parent with a non-auto width, overflow-x: auto;, the <table> has enough content to horizontally overflow its parent, and there are :hover styles set on elements within the table, then hovering over said elements will cause the <table>'s height to increase. See a live demo that triggers the bug. One workaround for the bug is to set min-height: 0%; (the % unit must be specified, since unitless and px don't work) on the <table>'s parent element.
css.selectors.id 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.in-range 📋Chrome3/8/2011 Firefox4/29/20141148
Chrome: Before Chrome 52, :in-range matched disabled and read-only inputs (see bug 41248615). In Chrome 52, it was changed to only match enabled read-write inputs.Chrome Android: Before Chrome Android 52, :in-range matched disabled and read-only inputs (see bug 41248615). In Chrome Android 52, it was changed to only match enabled read-write inputs.Firefox: Before Firefox 50, :in-range matched disabled and read-only inputs (see bug 1264157). In Firefox 50, it was changed to only match enabled read-write inputs.Quest Browser: Before Quest Browser 5.0, :in-range matched disabled and read-only inputs (see bug 41248615). In Quest Browser 5.0, it was changed to only match enabled read-write inputs.Opera: Before Opera 39, :in-range matched disabled and read-only inputs (see bug 41248615). In Opera 39, it was changed to only match enabled read-write inputs.Opera Android: Before Opera 39, :in-range matched disabled and read-only inputs (see bug 41248615). In Opera 39, it was changed to only match enabled read-write inputs.Safari: In Safari, :in-range matched disabled and read-only inputs (see bug 156530). It was later changed to only match enabled read-write inputs.Safari on iOS: In Safari on iOS, :in-range matched disabled and read-only inputs (see bug 156530). It was later changed to only match enabled read-write inputs.Samsung Internet: Before version 6.0, :in-range matched disabled and read-only inputs (see bug 41248615). In version 6.0, it was changed to only match enabled read-write inputs.WebView Android: Before version 52, :in-range matched disabled and read-only inputs (see bug 41248615). In version 52, it was changed to only match enabled read-write inputs.WebView on iOS: In WebView on iOS, :in-range matched disabled and read-only inputs (see bug 156530). It was later changed to only match enabled read-write inputs.
css.selectors.indeterminate 📋Firefox10/24/2006 Chrome12/11/2008779
css.selectors.indeterminate.checkbox Chrome12/11/2008 Firefox1/21/2010406
css.selectors.indeterminate.progress Chrome9/2/2010 Firefox8/16/2011348
css.selectors.indeterminate.radio Chrome11/18/2014 Firefox1/24/2017798
css.selectors.invalid 📋Chrome3/8/2011 Firefox3/22/201114
css.selectors.invalid.form Firefox6/5/2012 Chrome1/21/2015960
css.selectors.is 📋Firefox6/30/2020 Chrome1/19/2021203
Chrome: Doesn't support combinators.Chrome Android: Doesn't support combinators.Edge: Doesn't support combinators.Firefox: Doesn't support combinators.Firefox: See bug 906353.Firefox for Android: Doesn't support combinators.Firefox for Android: See bug 906353.Quest Browser: Doesn't support combinators.Opera: Doesn't support combinators.Opera Android: Doesn't support combinators.Safari: Doesn't support combinators.Safari on iOS: Doesn't support combinators.WebView Android: Doesn't support combinators.WebView on iOS: Doesn't support combinators.
css.selectors.is.forgiving_selector_list Firefox10/20/2020 Chrome1/19/202191
css.selectors.lang 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.last-child 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.last-child.no_parent_required Firefox3/7/2017 Chrome3/9/20172
css.selectors.last-of-type 📋Chrome12/11/2008 Firefox6/30/2009201
Edge: Before Edge 16, Microsoft Edge treats all unknown elements (such as custom elements) as the same element type.Internet Explorer: Internet Explorer treats all unknown elements (such as custom elements) as the same element type.
css.selectors.link 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.link.not_match_link Chrome12/11/2008 Firefox3/23/20214485
css.selectors.list 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.marker 📋Firefox7/9/2019 Chrome10/20/2020469
Safari: Safari support is limited to color and font-size. See bug 204163.Safari on iOS: Safari on iOS support is limited to color and font-size. See bug 204163.WebView on iOS: WebView on iOS support is limited to color and font-size. See bug 204163.
css.selectors.marker.animation_and_transition_support Firefox8/25/2020 Chrome10/20/202056
css.selectors.modal 📋Firefox7/26/2022 Chrome9/2/202238
css.selectors.namespace 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.nesting 📋Firefox8/29/2023 Chrome12/5/202398
Chrome: Does not support nested rules that start with a type selector.Chrome Android: Does not support nested rules that start with a type selector.Edge: Does not support nested rules that start with a type selector.Opera: Does not support nested rules that start with a type selector.Opera Android: Does not support nested rules that start with a type selector.Safari: Does not support nested rules that start with a type selector.Safari on iOS: Does not support nested rules that start with a type selector.Samsung Internet: Does not support nested rules that start with a type selector.WebView Android: Does not support nested rules that start with a type selector.WebView on iOS: Does not support nested rules that start with a type selector.
css.selectors.next-sibling 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Before Internet Explorer 10, the combinator only works in standards mode.Internet Explorer: Internet Explorer 7 doesn't update the style correctly when an element is dynamically placed before an element that matched the selector.Internet Explorer: In Internet Explorer 8, if an element is inserted dynamically by clicking on a link the first-child style isn't applied until the link loses focus.
css.selectors.not 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.not.selector_list Firefox12/15/2020 Chrome1/19/202135
css.selectors.nth-child 📋Chrome12/11/2008 Firefox6/30/2009201
Opera: Before Opera 15, Opera does not handle dynamically inserted elements for :nth-child().Opera Android: Before Opera 15, Opera does not handle dynamically inserted elements for :nth-child().
css.selectors.nth-child.no_parent_required Firefox3/7/2017 Chrome3/9/20172
css.selectors.nth-child.of_syntax Chrome3/7/2023 Firefox5/9/202363
css.selectors.nth-last-child 📋Firefox6/30/2009 Chrome1/25/2010209
css.selectors.nth-last-child.no_parent_required Firefox3/7/2017 Chrome3/9/20172
css.selectors.nth-last-child.of_syntax Chrome3/7/2023 Firefox5/9/202363
css.selectors.nth-last-of-type 📋Firefox6/30/2009 Chrome1/25/2010209
Edge: Before Edge 16, Microsoft Edge treats all unknown elements (such as custom elements) as the same element type.Internet Explorer: Internet Explorer treats all unknown elements (such as custom elements) as the same element type.
css.selectors.nth-of-type 📋Chrome12/11/2008 Firefox6/30/2009201
Edge: Before Edge 16, Microsoft Edge treats all unknown elements (such as custom elements) as the same element type.Internet Explorer: Internet Explorer treats all unknown elements (such as custom elements) as the same element type.
css.selectors.only-child 📋Firefox11/29/2005 Chrome5/21/20091269
css.selectors.only-child.no_parent_required Firefox3/7/2017 Chrome3/9/20172
css.selectors.only-of-type 📋Chrome12/11/2008 Firefox6/30/2009201
Edge: Before Edge 16, Microsoft Edge treats all unknown elements (such as custom elements) as the same element type.Internet Explorer: Internet Explorer treats all unknown elements (such as custom elements) as the same element type.
css.selectors.optional 📋Chrome3/8/2011 Firefox3/22/201114
css.selectors.out-of-range 📋Chrome3/8/2011 Firefox4/29/20141148
css.selectors.part 📋Chrome3/12/2019 Firefox1/7/2020301
css.selectors.placeholder 📋Firefox1/24/2017 Chrome3/9/201744
css.selectors.placeholder-shown 📋Chrome12/1/2015 Firefox1/24/2017420
css.selectors.placeholder-shown.non_text_types Chrome12/1/2015 Firefox3/13/2018833
css.selectors.popover-open 📋Chrome5/30/2023 Firefox4/16/2024322
css.selectors.read-only 📋Chrome12/11/2008 Firefox6/30/20204219
css.selectors.read-write 📋Chrome12/11/2008 Firefox6/30/20204219
css.selectors.required 📋Chrome3/8/2011 Firefox3/22/201114
css.selectors.root 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.scope 📋Chrome5/21/2013 Firefox9/2/2014469
Firefox: Firefox 55 removes support for <style scoped> but not for the :scope pseudo-class, which is still supported. <style scoped> made it possible to explicitly set up element scopes, but ongoing discussions about the design of this feature as well as lack of other implementations resulted in the decision to remove it.Firefox for Android: Firefox for Android 55 removes support for <style scoped> but not for the :scope pseudo-class, which is still supported. <style scoped> made it possible to explicitly set up element scopes, but ongoing discussions about the design of this feature as well as lack of other implementations resulted in the decision to remove it.
css.selectors.scope.dom_api Chrome5/21/2013 Firefox9/2/2014469
css.selectors.selection 📋Chrome12/11/2008 Firefox9/5/20183555
css.selectors.slotted 📋Chrome4/13/2016 Firefox10/23/2018923
css.selectors.state 📋Chrome5/14/2024 Firefox5/14/2024
Chrome: Uses a dashed-ident (such as :--foo) instead of :state().Chrome Android: Uses a dashed-ident (such as :--foo) instead of :state().Edge: Uses a dashed-ident (such as :--foo) instead of :state().Quest Browser: Uses a dashed-ident (such as :--foo) instead of :state().Opera: Uses a dashed-ident (such as :--foo) instead of :state().Opera Android: Uses a dashed-ident (such as :--foo) instead of :state().Samsung Internet: Uses a dashed-ident (such as :--foo) instead of :state().WebView Android: Uses a dashed-ident (such as :--foo) instead of :state().
css.selectors.subsequent-sibling 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Before Internet Explorer 10, the combinator only works in standards mode.
css.selectors.target 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.target-text 📋Chrome3/2/2021 Firefox10/1/20241309
css.selectors.type 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.type.namespaces Firefox11/9/2004 Chrome12/11/20081493
css.selectors.universal 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.universal.namespaces Firefox11/9/2004 Chrome12/11/20081493
css.selectors.user-invalid 📋Firefox4/19/2021 Chrome10/31/2023925
css.selectors.user-valid 📋Firefox4/19/2021 Chrome10/31/2023925
css.selectors.valid 📋Chrome3/8/2011 Firefox3/22/201114
css.selectors.valid.form Firefox6/5/2012 Chrome1/21/2015960
css.selectors.visited 📋Firefox11/9/2004 Chrome12/11/20081493
css.selectors.visited.not_match_link Chrome12/11/2008 Firefox3/23/20214485
css.selectors.visited.privacy_measures Chrome9/2/2010 Firefox3/22/2011201
css.selectors.where 📋Firefox6/30/2020 Chrome1/19/2021203
css.selectors.where.forgiving_selector_list Firefox10/20/2020 Chrome1/19/202191
css.types.acos 📋Firefox12/13/2022 Chrome3/7/202384
css.types.angle 📋Chrome5/21/2009 Firefox1/21/2010245
css.types.angle.deg Chrome5/21/2009 Firefox1/21/2010245
css.types.angle.grad Chrome5/21/2009 Firefox1/21/2010245
css.types.angle.rad Chrome5/21/2009 Firefox1/21/2010245
css.types.angle.turn Chrome5/21/2009 Firefox6/5/20121111
css.types.angle-percentage 📋Chrome5/21/2009 Firefox1/21/2010245
css.types.asin 📋Firefox12/13/2022 Chrome3/7/202384
css.types.atan 📋Firefox12/13/2022 Chrome3/7/202384
css.types.atan2 📋Firefox12/13/2022 Chrome3/7/202384
css.types.attr 📋Firefox11/9/2004 Chrome5/21/20091654
css.types.attr.fallback Firefox10/24/2023 Chrome2/4/2025469
css.types.basic-shape 📋Chrome8/26/2014 Firefox6/13/20171022
css.types.basic-shape.animation Chrome8/26/2014 Firefox6/13/20171022
css.types.basic-shape.circle 📋Chrome8/26/2014 Firefox6/13/20171022
css.types.basic-shape.ellipse 📋Chrome8/26/2014 Firefox6/13/20171022
css.types.basic-shape.inset 📋Chrome8/26/2014 Firefox6/13/20171022
css.types.basic-shape.path 📋Chrome7/20/2016 Firefox1/7/20201266
css.types.basic-shape.path.clip-path 📋Firefox1/7/2020 Chrome1/19/2021378
css.types.basic-shape.path.d 📋Chrome7/20/2016 Firefox2/8/20222029
css.types.basic-shape.path.offset-path 📋Chrome1/25/2017 Firefox1/7/20201077
css.types.basic-shape.polygon 📋Chrome8/26/2014 Firefox6/13/20171022
css.types.basic-shape.rect 📋Chrome8/15/2023 Firefox1/23/2024161
Chrome: Only supported on the offset-path property.Chrome Android: Only supported on the offset-path property.Edge: Only supported on the offset-path property.Opera: Only supported on the offset-path property.Opera Android: Only supported on the offset-path property.Samsung Internet: Only supported on the offset-path property.WebView Android: Only supported on the offset-path property.
css.types.basic-shape.xywh 📋Chrome8/15/2023 Firefox1/23/2024161
Chrome: Only supported on the offset-path property.Chrome Android: Only supported on the offset-path property.Edge: Only supported on the offset-path property.Opera: Only supported on the offset-path property.Opera Android: Only supported on the offset-path property.Samsung Internet: Only supported on the offset-path property.WebView Android: Only supported on the offset-path property.
css.types.blend-mode 📋Chrome5/20/2014 Firefox6/10/201421
css.types.calc 📋Firefox10/9/2012 Chrome3/26/2013168
Firefox: Before Firefox 59 calc() is not supported in rgb() and other color functions.Firefox: Before Firefox 57 calc(1*2*3) is not parsed successfully.Firefox: Firefox 57 increased the number of places calc() could substitute another value. See bug 1350857.Firefox for Android: Before Firefox for Android 59 calc() is not supported in rgb() and other color functions.Firefox for Android: Before Firefox for Android 57 calc(1*2*3) is not parsed successfully.Firefox for Android: Firefox for Android 57 increased the number of places calc() could substitute another value. See bug 1350857.
css.types.calc.color_component Chrome10/31/2023 Firefox7/9/2024252
css.types.calc.gradient_color_stops Chrome5/15/2012 Firefox2/19/2013280
css.types.calc.nested Chrome5/25/2016 Firefox8/2/201669
css.types.calc.number_values Chrome11/12/2013 Firefox8/2/2016994
css.types.calc-keyword 📋Chrome3/1/2022 Firefox12/13/2022287
css.types.calc-keyword.NaN Chrome3/1/2022 Firefox6/6/2023462
css.types.calc-keyword.e Firefox12/13/2022 Chrome2/7/202356
css.types.calc-keyword.infinity Chrome3/1/2022 Firefox6/6/2023462
css.types.calc-keyword.pi Firefox12/13/2022 Chrome1/10/202328
css.types.clamp 📋Chrome12/10/2019 Firefox4/7/2020119
css.types.color 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.color.color 📋Chrome3/7/2023 Firefox5/9/202363
Safari: Only supports display-p3 and srgb predefined color profiles.Safari on iOS: Only supports display-p3 and srgb predefined color profiles.WebView on iOS: Only supports display-p3 and srgb predefined color profiles.
css.types.color.color.mixed_type_parameters Chrome3/7/2023 Firefox5/9/202363
css.types.color.color.relative_syntax 📋Chrome10/31/2023 Firefox7/9/2024252
Safari: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified as percentages with units (%).Safari on iOS: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified as percentages with units (%).WebView on iOS: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified as percentages with units (%).
css.types.color.color-mix 📋Chrome3/7/2023 Firefox5/9/202363
css.types.color.currentcolor 📋Firefox11/29/2005 Chrome12/11/20081108
css.types.color.hsl 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.color.hsl.alpha_parameter Firefox3/7/2017 Chrome3/6/2018364
css.types.color.hsl.mixed_type_parameters Chrome1/23/2024 Firefox1/23/2024
css.types.color.hsl.relative_syntax 📋Chrome5/14/2024 Firefox7/9/202456
Chrome: s and l channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require s and l values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).Chrome Android: s and l channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require s and l values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).Edge: s and l channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require s and l values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).Opera: s and l channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require s and l values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).Opera Android: s and l channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require s and l values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).Safari: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (deg for h, % for s and l).Safari on iOS: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (deg for h, % for s and l).Samsung Internet: s and l channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require s and l values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).WebView Android: s and l channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require s and l values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).WebView on iOS: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (deg for h, % for s and l).
css.types.color.hsl.space_separated_parameters Firefox3/7/2017 Chrome3/6/2018364
css.types.color.hwb 📋Firefox1/11/2022 Chrome4/26/2022105
css.types.color.hwb.mixed_type_parameters Chrome1/23/2024 Firefox1/23/2024
css.types.color.hwb.relative_syntax 📋Chrome5/14/2024 Firefox7/9/202456
Chrome: w and b channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require w and b values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).Chrome Android: w and b channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require w and b values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).Edge: w and b channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require w and b values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).Opera: w and b channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require w and b values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).Opera Android: w and b channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require w and b values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).Safari: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (deg for h, % for w and b).Safari on iOS: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (deg for h, % for w and b).Samsung Internet: w and b channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require w and b values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).WebView Android: w and b channel values incorrectly resolve to numbers between 0-1 rather than 0-100. As a result, channel value calculations require w and b values to be specified as decimal percentage equivalents (e.g. 0.2 for 20%).WebView on iOS: Implementation based on older spec version. As a result, calculations with channel values do not work correctly, requiring values to be specified with units (deg for h, % for w and b).
css.types.color.lab 📋Chrome3/7/2023 Firefox5/9/202363
css.types.color.lab.mixed_type_parameters Firefox5/9/2023 Chrome8/15/202398
css.types.color.lab.relative_syntax 📋Chrome10/31/2023 Firefox7/9/2024252
css.types.color.lch 📋Chrome3/7/2023 Firefox5/9/202363
css.types.color.lch.mixed_type_parameters Firefox5/9/2023 Chrome8/15/202398
css.types.color.lch.relative_syntax 📋Chrome10/31/2023 Firefox7/9/2024252
Safari: Implementation based on older spec version. As a result, calculations with h channel values do not work correctly, requiring values to be specified with units (deg).Safari on iOS: Implementation based on older spec version. As a result, calculations with h channel values do not work correctly, requiring values to be specified with units (deg).WebView on iOS: Implementation based on older spec version. As a result, calculations with h channel values do not work correctly, requiring values to be specified with units (deg).
css.types.color.light-dark 📋Firefox11/21/2023 Chrome3/19/2024119
css.types.color.named-color 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: Internet Explorer 8 and later support gray color keywords spelled with an e (grey, darkgrey, darkslategrey, dimgrey, lightgrey, and lightslategrey). Internet Explorer 3 to Internet Explorer 7 only support the keywords spelled with a (gray, darkgray, darkslategray, dimgray, lightgray, and lightslategray).
css.types.color.named-color.rebeccapurple Chrome10/7/2014 Firefox10/14/20147
css.types.color.named-color.transparent 📋Firefox6/17/2008 Chrome12/11/2008177
css.types.color.oklab 📋Chrome3/7/2023 Firefox5/9/202363
css.types.color.oklab.mixed_type_parameters Firefox5/9/2023 Chrome8/15/202398
css.types.color.oklab.relative_syntax 📋Chrome10/31/2023 Firefox7/9/2024252
css.types.color.oklch 📋Chrome3/7/2023 Firefox5/9/202363
css.types.color.oklch.mixed_type_parameters Firefox5/9/2023 Chrome8/15/202398
css.types.color.oklch.relative_syntax 📋Chrome10/31/2023 Firefox7/9/2024252
Safari: Implementation based on older spec version. As a result, calculations with h channel values do not work correctly, requiring values to be specified with units (deg).Safari on iOS: Implementation based on older spec version. As a result, calculations with h channel values do not work correctly, requiring values to be specified with units (deg).WebView on iOS: Implementation based on older spec version. As a result, calculations with h channel values do not work correctly, requiring values to be specified with units (deg).
css.types.color.rgb 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.color.rgb.alpha_parameter Firefox3/7/2017 Chrome3/6/2018364
css.types.color.rgb.float_values Firefox3/7/2017 Chrome4/17/2018406
css.types.color.rgb.mixed_type_parameters Firefox5/9/2023 Chrome2/20/2024287
css.types.color.rgb.relative_syntax 📋Chrome2/20/2024 Firefox7/9/2024140
Chrome: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 <number> value). See bug 41490327.Chrome Android: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 <number> value). See bug 41490327.Edge: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 <number> value). See bug 41490327.Opera: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 <number> value). See bug 41490327.Opera Android: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 <number> value). See bug 41490327.Safari: Implementation based on older spec version. As a result, channel value calculations do not work correctly, requiring values to be specified as percentages with units (e.g. 30%, which would be equivalent to a 76.5 <number> value). See bug 267647.Safari on iOS: Implementation based on older spec version. As a result, channel value calculations do not work correctly, requiring values to be specified as percentages with units (e.g. 30%, which would be equivalent to a 76.5 <number> value). See bug 267647.Samsung Internet: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 <number> value). See bug 41490327.WebView Android: Channel values incorrectly resolve to numbers between 0-1 rather than 0-255. As a result, channel value calculations require values to be specified as decimal percentage equivalents (e.g. 0.3 for 30%, which would be equivalent to a 76.5 <number> value). See bug 41490327.WebView on iOS: Implementation based on older spec version. As a result, channel value calculations do not work correctly, requiring values to be specified as percentages with units (e.g. 30%, which would be equivalent to a 76.5 <number> value). See bug 267647.
css.types.color.rgb.space_separated_parameters Firefox3/7/2017 Chrome3/6/2018364
css.types.color.rgb_hexadecimal_notation 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.color.rgb_hexadecimal_notation.alpha_hexadecimal_notation Firefox9/20/2016 Chrome10/17/2017392
css.types.color.system-color 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.color.system-color.accentcolor_accentcolortext 📋Firefox7/26/2022 Chrome7/18/2023357
Safari: Only supports a fallback: The native color when accent colour (in macOS' appearance panel) is set to 'multicolour'. On iOS falls back to the blue accent colourSafari on iOS: Only supports a fallback: The native color when accent colour (in macOS' appearance panel) is set to 'multicolour'. On iOS falls back to the blue accent colourWebView on iOS: Only supports a fallback: The native color when accent colour (in macOS' appearance panel) is set to 'multicolour'. On iOS falls back to the blue accent colour
css.types.cos 📋Firefox12/13/2022 Chrome3/7/202384
css.types.counter 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.counters 📋Firefox11/29/2005 Chrome12/11/20081108
css.types.dimension 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.easing-function 📋Chrome1/25/2010 Firefox3/22/2011421
css.types.easing-function.cubic-bezier 📋Firefox3/22/2011 Chrome12/13/2011266
css.types.easing-function.linear-function 📋Firefox4/11/2023 Chrome5/2/202321
css.types.easing-function.steps 📋Chrome12/2/2010 Firefox3/22/2011110
css.types.easing-function.steps.jump Firefox1/29/2019 Chrome9/10/2019224
css.types.exp 📋Firefox9/26/2023 Chrome12/5/202370
css.types.filter-function 📋Chrome3/28/2012 Firefox1/13/20151021
css.types.filter-function.blur 📋Chrome3/28/2012 Firefox1/13/20151021
css.types.filter-function.brightness 📋Chrome3/28/2012 Firefox1/13/20151021
css.types.filter-function.contrast 📋Chrome3/28/2012 Firefox1/13/20151021
css.types.filter-function.drop-shadow 📋Chrome3/28/2012 Firefox1/13/20151021
css.types.filter-function.grayscale 📋Chrome3/28/2012 Firefox1/13/20151021
css.types.filter-function.hue-rotate 📋Chrome3/28/2012 Firefox1/13/20151021
css.types.filter-function.invert 📋Chrome3/28/2012 Firefox1/13/20151021
css.types.filter-function.opacity 📋Chrome3/28/2012 Firefox1/13/20151021
css.types.filter-function.saturate 📋Chrome3/28/2012 Firefox1/13/20151021
css.types.filter-function.sepia 📋Chrome3/28/2012 Firefox1/13/20151021
css.types.flex 📋Chrome8/20/2013 Firefox8/11/2015721
css.types.global_keywords Firefox11/9/2004 Chrome12/11/20081493
css.types.global_keywords.inherit 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.global_keywords.initial 📋Chrome12/11/2008 Firefox2/19/20131531
css.types.global_keywords.revert 📋Firefox5/21/2019 Chrome7/27/2020433
css.types.global_keywords.revert-layer 📋Firefox2/8/2022 Chrome3/1/202221
css.types.global_keywords.unset 📋Firefox2/4/2014 Chrome3/3/2015392
css.types.gradient 📋Firefox1/21/2010 Chrome3/26/20131160
Firefox: Gradients are limited to background-image, border-image, and mask-image.Firefox for Android: Gradients are limited to background-image, border-image, and mask-image.
css.types.gradient.conic-gradient 📋Chrome9/4/2018 Firefox11/17/2020805
css.types.gradient.conic-gradient.doubleposition Chrome1/29/2019 Firefox11/17/2020658
css.types.gradient.conic-gradient.hue_interpolation_method Chrome3/7/2023 Firefox6/11/2024462
css.types.gradient.conic-gradient.interpolation_color_space Chrome3/7/2023 Firefox6/11/2024462
css.types.gradient.linear-gradient 📋Firefox10/9/2012 Chrome3/26/2013168
Firefox: Since Firefox 42, the prefixed version of gradients can be disabled by setting layout.css.prefixes.gradients to false.Firefox: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Firefox for Android: Since Firefox for Android 42, the prefixed version of gradients can be disabled by setting layout.css.prefixes.gradients to false.Firefox for Android: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Internet Explorer: Internet Explorer 5.5 through 9.0 supported gradients via a proprietary filter: -ms-filter: progid:DXImageTransform.Microsoft.Gradient().Opera: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Opera: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Opera Android: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Opera Android: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Safari: Safari 4 was supporting an experimental -webkit-gradient(linear,…) function. It is more limited than the later standard version: you cannot specify both a position and an angle like in linear-gradient(). This old outdated syntax is still supported for compatibility purposes.Safari: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Safari on iOS: Safari on iOS 3.2 was supporting an experimental -webkit-gradient(linear,…) function. It is more limited than the later standard version: you cannot specify both a position and an angle like in linear-gradient(). This old outdated syntax is still supported for compatibility purposes.Safari on iOS: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.WebView on iOS: WebView on iOS 3.2 was supporting an experimental -webkit-gradient(linear,…) function. It is more limited than the later standard version: you cannot specify both a position and an angle like in linear-gradient(). This old outdated syntax is still supported for compatibility purposes.WebView on iOS: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.
css.types.gradient.linear-gradient.doubleposition Chrome12/4/2018 Firefox12/11/20187
css.types.gradient.linear-gradient.hue_interpolation_method Chrome3/7/2023 Firefox6/11/2024462
css.types.gradient.linear-gradient.interpolation_color_space Chrome3/7/2023 Firefox6/11/2024462
css.types.gradient.linear-gradient.interpolation_hints Chrome1/21/2015 Firefox2/24/201534
css.types.gradient.linear-gradient.premultiplied_gradients Chrome8/20/2013 Firefox2/24/2015553
css.types.gradient.linear-gradient.to Firefox1/31/2012 Chrome3/26/2013420
css.types.gradient.linear-gradient.unitless_0_angle Chrome3/26/2013 Firefox8/8/20171596
Firefox: Accepted only in -webkit-linear-gradient() and -moz-linear-gradient(), not linear-gradient().Firefox for Android: Accepted only in -webkit-linear-gradient() and -moz-linear-gradient(), not linear-gradient().
css.types.gradient.radial-gradient 📋Firefox10/9/2012 Chrome3/26/2013168
Firefox: Since Firefox 42, the prefixed version of gradients can be disabled by setting layout.css.prefixes.gradients to false.Firefox for Android: Since Firefox for Android 42, the prefixed version of gradients can be disabled by setting layout.css.prefixes.gradients to false.Internet Explorer: Internet Explorer 5.5 through 9.0 supported gradients via a proprietary filter: -ms-filter: progid:DXImageTransform.Microsoft.Gradient().Safari: Safari 4 was supporting an experimental -webkit-gradient(radial,…) function. This old outdated syntax is still supported for compatibility purposes.Safari on iOS: Safari on iOS 3.2 was supporting an experimental -webkit-gradient(radial,…) function. This old outdated syntax is still supported for compatibility purposes.WebView on iOS: WebView on iOS 3.2 was supporting an experimental -webkit-gradient(radial,…) function. This old outdated syntax is still supported for compatibility purposes.
css.types.gradient.radial-gradient.at Firefox1/31/2012 Chrome3/26/2013420
css.types.gradient.radial-gradient.doubleposition Chrome12/4/2018 Firefox12/11/20187
css.types.gradient.radial-gradient.hue_interpolation_method Chrome3/7/2023 Firefox6/11/2024462
css.types.gradient.radial-gradient.interpolation_color_space Chrome3/7/2023 Firefox6/11/2024462
css.types.gradient.radial-gradient.interpolation_hints Chrome1/21/2015 Firefox2/24/201534
css.types.gradient.radial-gradient.premultiplied_gradients Chrome8/20/2013 Firefox2/24/2015553
css.types.gradient.repeating-conic-gradient 📋Chrome9/4/2018 Firefox11/17/2020805
css.types.gradient.repeating-conic-gradient.hue_interpolation_method Chrome3/7/2023 Firefox6/11/2024462
css.types.gradient.repeating-conic-gradient.interpolation_color_space Chrome3/7/2023 Firefox6/11/2024462
css.types.gradient.repeating-linear-gradient 📋Firefox10/9/2012 Chrome3/26/2013168
Firefox: Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency.Firefox: Since Firefox 42, the prefixed version of gradients can be disabled by setting layout.css.prefixes.gradients to false.Firefox: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Firefox for Android: Before Firefox for Android 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency.Firefox for Android: Since Firefox for Android 42, the prefixed version of gradients can be disabled by setting layout.css.prefixes.gradients to false.Firefox for Android: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Internet Explorer: Internet Explorer 5.5 through 9.0 supported gradients via a proprietary filter: -ms-filter: progid:DXImageTransform.Microsoft.Gradient().Opera: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Opera: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Opera Android: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Opera Android: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Safari: Safari 4 was supporting an experimental -webkit-gradient(linear,…) function. It is more limited than the later standard version: you cannot specify both a position and an angle like in repeating-linear-gradient(). This old outdated syntax is still supported for compatibility purposes.Safari: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.Safari on iOS: Safari on iOS 3.2 was supporting an experimental -webkit-gradient(linear,…) function. It is more limited than the later standard version: you cannot specify both a position and an angle like in repeating-linear-gradient(). This old outdated syntax is still supported for compatibility purposes.Safari on iOS: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.WebView on iOS: WebView on iOS 3.2 was supporting an experimental -webkit-gradient(linear,…) function. It is more limited than the later standard version: you cannot specify both a position and an angle like in repeating-linear-gradient(). This old outdated syntax is still supported for compatibility purposes.WebView on iOS: Considers <angle> to start to the right, instead of the top. I.e. it considered an angle of 0deg as a direction indicator pointing to the right.
css.types.gradient.repeating-linear-gradient.doubleposition Chrome12/4/2018 Firefox12/11/20187
css.types.gradient.repeating-linear-gradient.hue_interpolation_method Chrome3/7/2023 Firefox6/11/2024462
css.types.gradient.repeating-linear-gradient.interpolation_color_space Chrome3/7/2023 Firefox6/11/2024462
css.types.gradient.repeating-linear-gradient.interpolation_hints Chrome1/21/2015 Firefox2/24/201534
css.types.gradient.repeating-linear-gradient.to Firefox1/31/2012 Chrome3/26/2013420
css.types.gradient.repeating-linear-gradient.unitless_0_angle Chrome3/26/2013 Firefox8/8/20171596
Firefox: Accepted only in -webkit-repeating-linear-gradient() and -moz-repeating-linear-gradient(), not repeating-linear-gradient().Firefox for Android: Accepted only in -webkit-repeating-linear-gradient() and -moz-repeating-linear-gradient(), not repeating-linear-gradient().
css.types.gradient.repeating-radial-gradient 📋Firefox10/9/2012 Chrome3/26/2013168
Firefox: Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency.Firefox: Since Firefox 42, the prefixed version of gradients can be disabled by setting layout.css.prefixes.gradients to false.Firefox for Android: Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency.Firefox for Android: Since Firefox 42, the prefixed version of gradients can be disabled by setting layout.css.prefixes.gradients to false.Safari: Safari 4 was supporting an experimental -webkit-gradient(radial,…) function. This old outdated syntax is still supported for compatibility purposes.Safari on iOS: Safari on iOS 3.2 was supporting an experimental -webkit-gradient(radial,…) function. This old outdated syntax is still supported for compatibility purposes.WebView on iOS: WebView on iOS 3.2 was supporting an experimental -webkit-gradient(radial,…) function. This old outdated syntax is still supported for compatibility purposes.
css.types.gradient.repeating-radial-gradient.at Firefox10/9/2012 Chrome3/26/2013168
Firefox: Before Firefox 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency.Firefox: Since Firefox 42, the prefixed version of gradients can be disabled by setting layout.css.prefixes.gradients to false.Firefox for Android: Before Firefox for Android 36, gradients weren't applied on the pre-multiplied color space, leading to shades of grey unexpectedly appearing when used with transparency.Firefox for Android: Since Firefox for Android 42, the prefixed version of gradients can be disabled by setting layout.css.prefixes.gradients to false.
css.types.gradient.repeating-radial-gradient.doubleposition Chrome12/4/2018 Firefox12/11/20187
css.types.gradient.repeating-radial-gradient.hue_interpolation_method Chrome3/7/2023 Firefox6/11/2024462
css.types.gradient.repeating-radial-gradient.interpolation_color_space Chrome3/7/2023 Firefox6/11/2024462
css.types.gradient.repeating-radial-gradient.interpolation_hints Chrome1/21/2015 Firefox2/24/201534
css.types.hypot 📋Firefox9/26/2023 Chrome12/5/202370
css.types.image 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.image.image-set 📋Firefox6/1/2021 Chrome5/2/2023700
Chrome: Support for url images only and x is the only supported resolution unit.Chrome Android: Support for url images only and x is the only supported resolution unit.Edge: Support for url images only and x is the only supported resolution unit.Firefox: The type() function is not supported as an argument to image-set().Firefox for Android: The type() function is not supported as an argument to image-set().Quest Browser: Support for url images only and x is the only supported resolution unit.Opera: Support for url images only and x is the only supported resolution unit.Opera Android: Support for url images only and x is the only supported resolution unit.Safari: The type() function is not supported as an argument to image-set().Safari: The type() function is not supported as an argument to image-set().Safari: Support for url images only and x is the only supported resolution unit.Safari: Support for url images only and x is the only supported resolution unit.Safari on iOS: The type() function is not supported as an argument to image-set().Safari on iOS: The type() function is not supported as an argument to image-set().Safari on iOS: Support for url images only and x is the only supported resolution unit.Safari on iOS: Support for url images only and x is the only supported resolution unit.Samsung Internet: Support for url images only and x is the only supported resolution unit.WebView Android: Support for url images only and x is the only supported resolution unit.WebView on iOS: The type() function is not supported as an argument to image-set().WebView on iOS: The type() function is not supported as an argument to image-set().WebView on iOS: Support for url images only and x is the only supported resolution unit.WebView on iOS: Support for url images only and x is the only supported resolution unit.
css.types.integer 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.length 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.length.Q Firefox9/20/2016 Chrome12/6/2017442
css.types.length.cap Firefox2/8/2022 Chrome10/10/2023609
css.types.length.ch Firefox11/9/2004 Chrome5/21/20133115
Firefox: From Firefox 1 to Firefox 3, ch was the width of the M character.Firefox: From Firefox 1 to Firefox 3, ch did not work with border-width and outline-width CSS properties.
css.types.length.container_query_length_units Chrome9/2/2022 Firefox2/14/2023165
css.types.length.em Firefox11/9/2004 Chrome12/11/20081493
css.types.length.ex Firefox11/9/2004 Chrome12/11/20081493
css.types.length.ic Firefox2/8/2022 Chrome9/27/2022231
css.types.length.lh 📋Chrome1/10/2023 Firefox11/21/2023315
css.types.length.rem Firefox1/21/2010 Chrome1/25/20104
css.types.length.rlh 📋Chrome3/7/2023 Firefox11/21/2023259
css.types.length.vb Firefox5/31/2022 Chrome11/29/2022182
css.types.length.vh Chrome6/26/2012 Firefox2/19/2013238
Firefox: Starting with version 21, viewport-percentage lengths are invalid in @page.Firefox for Android: Starting with version 21, viewport-percentage lengths are invalid in @page.
css.types.length.vi Firefox5/31/2022 Chrome11/29/2022182
css.types.length.viewport_percentage_units_dynamic Firefox5/31/2022 Chrome11/29/2022182
css.types.length.viewport_percentage_units_large Firefox5/31/2022 Chrome11/29/2022182
css.types.length.viewport_percentage_units_small Firefox5/31/2022 Chrome11/29/2022182
css.types.length.vmax Firefox2/19/2013 Chrome3/26/201335
Firefox: Starting with version 21, viewport-percentage lengths are invalid in @page.Firefox for Android: Starting with version 21, viewport-percentage lengths are invalid in @page.
css.types.length.vmin Firefox2/19/2013 Chrome3/26/201335
Firefox: Starting with version 21, viewport-percentage lengths are invalid in @page.Firefox for Android: Starting with version 21, viewport-percentage lengths are invalid in @page.
css.types.length.vw Chrome6/26/2012 Firefox2/19/2013238
Firefox: Starting with version 21, viewport-percentage lengths are invalid in @page.Firefox for Android: Starting with version 21, viewport-percentage lengths are invalid in @page.
css.types.length-percentage 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.line-style 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.log 📋Firefox9/26/2023 Chrome12/5/202370
css.types.max 📋Chrome12/10/2019 Firefox4/7/2020119
css.types.min 📋Chrome12/10/2019 Firefox4/7/2020119
css.types.mod 📋Firefox9/26/2023 Chrome5/14/2024231
css.types.number 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.number.scientific_notation Firefox4/29/2014 Chrome5/19/2015385
css.types.overflow 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: From version 4 to 6, Internet Explorer enlarges an element with visible (default value) to fit the content inside it.
css.types.overflow.clip Firefox9/22/2020 Chrome4/13/2021203
css.types.overflow.overlay Firefox4/11/2023 Chrome5/30/202349
Chrome: Before version 114, the overlay keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 114, the keyword aliases to the standard auto keyword. See bug 40444262.Chrome Android: Before version 114, the overlay keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 114, the keyword aliases to the standard auto keyword. See bug 40444262.Edge: Before version 114, the overlay keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 114, the keyword aliases to the standard auto keyword. See bug 40444262.Quest Browser: Before version false, the overlay keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version false, the keyword aliases to the standard auto keyword. See bug 40444262.Opera: Before version 100, the overlay keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 100, the keyword aliases to the standard auto keyword. See bug 40444262.Safari: Before version 12, the overlay keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 12, the keyword aliases to the standard auto keyword. See bug 189811.Safari on iOS: Before version 12, the overlay keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 12, the keyword aliases to the standard auto keyword. See bug 189811.WebView Android: Before version 114, the overlay keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 114, the keyword aliases to the standard auto keyword. See bug 40444262.WebView on iOS: Before version 12, the overlay keyword caused non-standard behavior, allowing scrollbars to overlay content without taking up layout space. From version 12, the keyword aliases to the standard auto keyword. See bug 189811.
css.types.percentage 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.position 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.position.four_value_syntax Firefox6/5/2012 Chrome2/21/2013261
css.types.position.keyword_value_syntax Firefox11/9/2004 Chrome12/11/20081493
css.types.pow 📋Firefox9/26/2023 Chrome12/5/202370
css.types.ratio 📋Firefox6/30/2009 Chrome9/15/200977
css.types.ray 📋Chrome8/15/2023 Firefox1/23/2024161
css.types.ray.position Chrome8/15/2023 Firefox1/23/2024161
css.types.ray.size Chrome8/15/2023 Firefox1/23/2024161
css.types.rem 📋Firefox9/26/2023 Chrome5/14/2024231
css.types.resolution 📋Firefox11/8/2011 Chrome8/20/2013651
Firefox: Supports <integer> values only.Firefox for Android: Supports <integer> values only.
css.types.resolution.dpcm Firefox11/8/2011 Chrome8/20/2013651
css.types.resolution.dpi Firefox11/8/2011 Chrome8/20/2013651
css.types.resolution.dppx Firefox10/9/2012 Chrome8/20/2013315
css.types.resolution.x Chrome7/24/2018 Firefox9/5/201843
css.types.round 📋Firefox9/26/2023 Chrome5/14/2024231
css.types.shape 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.shape.rect Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: For Internet Explorer versions 5.5 through 7, the rect() function uses spaces (instead of commas) to separate parameters. For Internet Explorer 8 and later versions, only the standard comma-separated syntax is supported.
css.types.sin 📋Firefox12/13/2022 Chrome3/7/202384
css.types.sqrt 📋Firefox9/26/2023 Chrome12/5/202370
css.types.string 📋Firefox11/9/2004 Chrome12/11/20081493
css.types.string.unicode_escaped_characters Firefox11/9/2004 Chrome12/11/20081493
css.types.tan 📋Firefox12/13/2022 Chrome3/7/202384
css.types.time 📋Chrome12/11/2008 Firefox3/22/2011831
css.types.transform-function 📋Chrome12/11/2008 Firefox6/30/2009201
Internet Explorer: Internet Explorer 9 supports 2D but not 3D transforms. In version 9, mixing 2D and 3D transform functions invalidates the entire property.
css.types.transform-function.matrix 📋Chrome12/11/2008 Firefox6/30/2009201
Firefox: Before Firefox 16, the translation values of matrix() could be <length>s, in addition to the standard <number>.
css.types.transform-function.matrix3d 📋Chrome6/7/2011 Firefox1/31/2012238
Firefox: Before Firefox 16, the translation values of matrix3d() could be <length>s, in addition to the standard <number>.
css.types.transform-function.perspective 📋Chrome6/7/2011 Firefox1/31/2012238
css.types.transform-function.perspective.none 📋Firefox10/5/2021 Chrome1/4/202291
css.types.transform-function.rotate 📋Chrome12/11/2008 Firefox6/30/2009201
css.types.transform-function.rotate3d 📋Chrome6/7/2011 Firefox1/31/2012238
css.types.transform-function.rotateX 📋Chrome6/7/2011 Firefox1/31/2012238
css.types.transform-function.rotateY 📋Chrome6/7/2011 Firefox1/31/2012238
css.types.transform-function.rotateZ 📋Chrome6/7/2011 Firefox1/31/2012238
css.types.transform-function.scale 📋Chrome12/11/2008 Firefox6/30/2009201
css.types.transform-function.scale3d 📋Chrome6/7/2011 Firefox1/31/2012238
css.types.transform-function.scaleX 📋Chrome12/11/2008 Firefox6/30/2009201
css.types.transform-function.scaleY 📋Chrome12/11/2008 Firefox6/30/2009201
css.types.transform-function.scaleZ 📋Chrome6/7/2011 Firefox1/31/2012238
css.types.transform-function.skew 📋Chrome12/11/2008 Firefox6/30/2009201
Firefox: Firefox 14 removed experimental support for skew(), but it was reintroduced in Firefox 15.
css.types.transform-function.skewX 📋Chrome12/11/2008 Firefox6/30/2009201
css.types.transform-function.skewY 📋Chrome12/11/2008 Firefox6/30/2009201
css.types.transform-function.translate 📋Chrome12/11/2008 Firefox6/30/2009201
css.types.transform-function.translate3d 📋Chrome6/7/2011 Firefox1/31/2012238
css.types.transform-function.translateX 📋Chrome12/11/2008 Firefox6/30/2009201
css.types.transform-function.translateY 📋Chrome12/11/2008 Firefox6/30/2009201
css.types.transform-function.translateZ 📋Chrome6/7/2011 Firefox1/31/2012238
css.types.url 📋Firefox11/9/2004 Chrome12/11/20081493

JS Data

API First Browser Date Last Browser Date Days Notes
javascript.builtins.AggregateError 📋Firefox7/28/2020 Chrome8/25/202028
javascript.builtins.AggregateError.AggregateError 📋Firefox7/28/2020 Chrome8/25/202028
javascript.builtins.AggregateError.errors 📋Firefox7/28/2020 Chrome8/25/202028
javascript.builtins.AggregateError.serializable_object Chrome2/1/2022 Firefox7/26/2022175
Chrome: AggregateError serializes to the Error type, without additional properties.Chrome Android: AggregateError serializes to the Error type, without additional properties.Edge: AggregateError serializes to the Error type, without additional properties.Firefox: AggregateError serializes to the AggregateError type, with properties name, message, cause, and errors.Firefox for Android: AggregateError serializes to the AggregateError type, with properties name, message, cause, and errors.Quest Browser: AggregateError serializes to the Error type, without additional properties.Opera: AggregateError serializes to the Error type, without additional properties.Opera Android: AggregateError serializes to the Error type, without additional properties.Samsung Internet: AggregateError serializes to the Error type, without additional properties.WebView Android: AggregateError serializes to the Error type, without additional properties.
javascript.builtins.Array 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.@@iterator 📋Chrome10/7/2014 Firefox2/24/2015140
Firefox: A placeholder property named @@iterator is used.Firefox: A placeholder property named iterator is used.Firefox for Android: A placeholder property named @@iterator is used.Firefox for Android: A placeholder property named iterator is used.
javascript.builtins.Array.@@species 📋Chrome5/25/2016 Firefox8/2/201669
javascript.builtins.Array.@@unscopables 📋Chrome10/7/2014 Firefox8/2/2016665
javascript.builtins.Array.Array 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.at 📋Firefox7/13/2021 Chrome7/20/20217
javascript.builtins.Array.concat 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.copyWithin 📋Firefox9/2/2014 Chrome9/1/2015364
javascript.builtins.Array.entries 📋Firefox3/18/2014 Chrome10/7/2014203
javascript.builtins.Array.every 📋Firefox11/29/2005 Chrome12/11/20081108
javascript.builtins.Array.fill 📋Firefox7/22/2014 Chrome9/1/2015406
javascript.builtins.Array.filter 📋Firefox11/29/2005 Chrome12/11/20081108
javascript.builtins.Array.find 📋Firefox10/29/2013 Chrome9/1/2015672
javascript.builtins.Array.findIndex 📋Firefox10/29/2013 Chrome9/1/2015672
javascript.builtins.Array.findLast 📋Chrome1/4/2022 Firefox8/23/2022231
javascript.builtins.Array.findLastIndex 📋Chrome1/4/2022 Firefox8/23/2022231
javascript.builtins.Array.flat 📋Chrome9/4/2018 Firefox9/5/20181
javascript.builtins.Array.flatMap 📋Chrome9/4/2018 Firefox9/5/20181
javascript.builtins.Array.forEach 📋Firefox11/29/2005 Chrome12/11/20081108
javascript.builtins.Array.from 📋Firefox9/2/2014 Chrome9/1/2015364
javascript.builtins.Array.fromAsync 📋Firefox7/4/2023 Chrome1/23/2024203
javascript.builtins.Array.includes 📋Chrome12/1/2015 Firefox12/15/201514
javascript.builtins.Array.indexOf 📋Firefox11/29/2005 Chrome12/11/20081108
javascript.builtins.Array.isArray 📋Chrome1/25/2010 Firefox3/22/2011421
javascript.builtins.Array.join 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.keys 📋Firefox3/18/2014 Chrome10/7/2014203
javascript.builtins.Array.lastIndexOf 📋Firefox11/29/2005 Chrome12/11/20081108
javascript.builtins.Array.length 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.map 📋Firefox11/29/2005 Chrome12/11/20081108
javascript.builtins.Array.of 📋Firefox10/29/2013 Chrome9/1/2015672
javascript.builtins.Array.pop 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.push 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.reduce 📋Firefox6/17/2008 Chrome9/15/2009455
javascript.builtins.Array.reduceRight 📋Firefox6/17/2008 Chrome9/15/2009455
javascript.builtins.Array.reverse 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.shift 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.slice 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.some 📋Firefox11/29/2005 Chrome12/11/20081108
javascript.builtins.Array.sort 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.sort.stable_sorting Firefox6/17/2008 Chrome10/16/20183773
javascript.builtins.Array.splice 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: From Internet Explorer 5.5 through 8, all elements of the array will not be deleted if deleteCount is omitted. This behavior was fixed in Internet Explorer 9.
javascript.builtins.Array.toLocaleString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.toLocaleString.locales_parameter Chrome1/10/2013 Firefox3/7/20171517
Deno: Only the locale data for en-US is available.Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the function silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Array.toLocaleString.options_parameter Chrome1/10/2013 Firefox3/7/20171517
javascript.builtins.Array.toReversed 📋Chrome2/7/2023 Firefox7/4/2023147
javascript.builtins.Array.toSorted 📋Chrome2/7/2023 Firefox7/4/2023147
javascript.builtins.Array.toSpliced 📋Chrome2/7/2023 Firefox7/4/2023147
javascript.builtins.Array.toString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.unshift 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Array.values 📋Chrome4/17/2018 Firefox5/9/201822
javascript.builtins.Array.with 📋Chrome2/7/2023 Firefox7/4/2023147
javascript.builtins.ArrayBuffer 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.ArrayBuffer.@@species 📋Chrome5/25/2016 Firefox8/2/201669
javascript.builtins.ArrayBuffer.ArrayBuffer 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.ArrayBuffer.ArrayBuffer.maxByteLength_option 📋Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.ArrayBuffer.byteLength 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.ArrayBuffer.detached 📋Chrome5/30/2023 Firefox1/23/2024238
javascript.builtins.ArrayBuffer.isView 📋Chrome1/14/2014 Firefox4/29/2014105
javascript.builtins.ArrayBuffer.maxByteLength 📋Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.ArrayBuffer.resizable 📋Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.ArrayBuffer.resize 📋Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.ArrayBuffer.slice 📋Chrome2/8/2012 Firefox4/24/201276
Firefox: The non-standard ArrayBuffer.slice() method has been removed in Firefox 53 (but the standardized version ArrayBuffer.prototype.slice() is kept.Firefox for Android: The non-standard ArrayBuffer.slice() method has been removed in Firefox for Android 53 (but the standardized version ArrayBuffer.prototype.slice() is kept.
javascript.builtins.ArrayBuffer.transfer 📋Chrome5/30/2023 Firefox1/23/2024238
javascript.builtins.ArrayBuffer.transferToFixedLength 📋Chrome5/30/2023 Firefox1/23/2024238
javascript.builtins.AsyncFunction 📋Chrome12/1/2016 Firefox3/7/201796
javascript.builtins.AsyncFunction.AsyncFunction 📋Chrome12/1/2016 Firefox3/7/201796
javascript.builtins.AsyncGenerator 📋Firefox8/8/2017 Chrome12/6/2017120
javascript.builtins.AsyncGenerator.next 📋Firefox8/8/2017 Chrome12/6/2017120
javascript.builtins.AsyncGenerator.return 📋Firefox8/8/2017 Chrome12/6/2017120
javascript.builtins.AsyncGenerator.throw 📋Firefox8/8/2017 Chrome12/6/2017120
javascript.builtins.AsyncGeneratorFunction 📋Firefox8/8/2017 Chrome12/6/2017120
javascript.builtins.AsyncGeneratorFunction.AsyncGeneratorFunction 📋Firefox8/8/2017 Chrome12/6/2017120
javascript.builtins.AsyncIterator 📋Firefox11/14/2017 Chrome12/6/201722
javascript.builtins.AsyncIterator.@@asyncIterator 📋Firefox11/14/2017 Chrome12/6/201722
javascript.builtins.Atomics 📋Chrome7/24/2018 Firefox6/30/2020707
Safari: Before Safari 16.4, Atomics is gated behind COOP/COEP. For more detail, read Making your website "cross-origin isolated" using COOP and COEP.Safari on iOS: Before Safari on iOS 16.4, Atomics is gated behind COOP/COEP. For more detail, read Making your website "cross-origin isolated" using COOP and COEP.WebView on iOS: Before WebView on iOS 16.4, Atomics is gated behind COOP/COEP. For more detail, read Making your website "cross-origin isolated" using COOP and COEP.
javascript.builtins.Atomics.add 📋Chrome7/24/2018 Firefox6/30/2020707
javascript.builtins.Atomics.and 📋Chrome7/24/2018 Firefox6/30/2020707
javascript.builtins.Atomics.compareExchange 📋Chrome7/24/2018 Firefox6/30/2020707
javascript.builtins.Atomics.exchange 📋Chrome7/24/2018 Firefox6/30/2020707
javascript.builtins.Atomics.isLockFree 📋Chrome7/24/2018 Firefox6/30/2020707
javascript.builtins.Atomics.load 📋Chrome7/24/2018 Firefox6/30/2020707
javascript.builtins.Atomics.notify 📋Chrome7/24/2018 Firefox6/30/2020707
javascript.builtins.Atomics.or 📋Chrome7/24/2018 Firefox6/30/2020707
javascript.builtins.Atomics.store 📋Chrome7/24/2018 Firefox6/30/2020707
javascript.builtins.Atomics.sub 📋Chrome7/24/2018 Firefox6/30/2020707
javascript.builtins.Atomics.wait 📋Chrome7/24/2018 Firefox6/30/2020707
javascript.builtins.Atomics.xor 📋Chrome7/24/2018 Firefox6/30/2020707
javascript.builtins.BigInt 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.BigInt.BigInt 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.BigInt.asIntN 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.BigInt.asUintN 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.BigInt.toLocaleString 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.BigInt.toLocaleString.locales_parameter Chrome7/30/2019 Firefox10/22/201984
Deno: Only the locale data for en-US is available.
javascript.builtins.BigInt.toLocaleString.options_parameter Chrome7/30/2019 Firefox10/22/201984
javascript.builtins.BigInt.toString 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.BigInt.valueOf 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.BigInt64Array 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.BigInt64Array.BigInt64Array 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.BigUint64Array 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.BigUint64Array.BigUint64Array 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.Boolean 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Boolean.Boolean 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Boolean.toString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Boolean.valueOf 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.DataView 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.DataView 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.DataView.sharedarraybuffer_support Chrome7/24/2018 Firefox7/28/2020735
javascript.builtins.DataView.buffer 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.byteLength 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.byteOffset 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.getBigInt64 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.DataView.getBigUint64 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.DataView.getFloat32 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.getFloat64 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.getInt16 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.getInt32 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.getInt8 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.getUint16 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.getUint32 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.getUint8 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.setBigInt64 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.DataView.setBigUint64 📋Chrome5/29/2018 Firefox7/9/2019406
javascript.builtins.DataView.setFloat32 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.setFloat64 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.setInt16 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.setInt32 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.setInt8 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.setUint16 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.setUint32 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.DataView.setUint8 📋Chrome2/3/2011 Firefox8/28/2012572
javascript.builtins.Date 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: The ISO8601 Date Format is not supported in Internet Explorer 8 or earlier.
javascript.builtins.Date.@@toPrimitive 📋Chrome12/1/2015 Firefox1/26/201656
javascript.builtins.Date.Date 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.UTC 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.UTC.optional_monthIndex Chrome3/9/2017 Firefox6/13/201796
javascript.builtins.Date.getDate 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getDay 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getFullYear 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getHours 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getMilliseconds 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getMinutes 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getMonth 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getSeconds 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getTime 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getTimezoneOffset 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getUTCDate 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getUTCDay 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getUTCFullYear 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getUTCHours 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getUTCMilliseconds 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getUTCMinutes 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getUTCMonth 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getUTCSeconds 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.getYear 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.now 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.parse 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.parse.iso_8601 Chrome9/2/2010 Firefox3/22/2011201
javascript.builtins.Date.setDate 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setFullYear 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setHours 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setMilliseconds 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setMinutes 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setMonth 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setSeconds 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setTime 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setUTCDate 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setUTCFullYear 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setUTCHours 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setUTCMilliseconds 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setUTCMinutes 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setUTCMonth 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setUTCSeconds 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.setYear 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.toDateString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.toGMTString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.toISOString 📋Firefox11/9/2004 Chrome9/15/20091771
javascript.builtins.Date.toJSON 📋Firefox11/9/2004 Chrome9/15/20091771
javascript.builtins.Date.toLocaleDateString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.toLocaleDateString.iana_time_zone_names Chrome1/10/2013 Firefox3/7/20171517
javascript.builtins.Date.toLocaleDateString.locales_parameter Chrome1/10/2013 Firefox4/29/2014474
Deno: Only the locale data for en-US is available.Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the function silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Date.toLocaleDateString.options_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Date.toLocaleString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.toLocaleString.iana_time_zone_names Chrome1/10/2013 Firefox3/7/20171517
javascript.builtins.Date.toLocaleString.locales_parameter Chrome1/10/2013 Firefox4/29/2014474
Deno: Only the locale data for en-US is available.Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the function silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Date.toLocaleString.options_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Date.toLocaleTimeString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.toLocaleTimeString.iana_time_zone_names Chrome1/10/2013 Firefox3/7/20171517
javascript.builtins.Date.toLocaleTimeString.locales_parameter Chrome1/10/2013 Firefox4/29/2014474
Deno: Only the locale data for en-US is available.Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the function silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Date.toLocaleTimeString.options_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Date.toString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.toTimeString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.toUTCString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Date.valueOf 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Error 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Error.Error 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Error.Error.options_cause_parameter 📋Firefox8/10/2021 Chrome8/31/202121
javascript.builtins.Error.cause 📋Firefox8/10/2021 Chrome8/31/202121
javascript.builtins.Error.cause.displayed_in_console Firefox8/10/2021 Chrome5/14/20241008
javascript.builtins.Error.message 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Error.name 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Error.serializable_object 📋Chrome9/10/2019 Firefox7/26/20221050
Firefox: Version 103 serialized properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox: Version 104 adds serialization of stack in the main thread (window.postMessage() and structuredClone()).Firefox: Version 110 adds serialization of stack in workers (worker.postMessage() and structuredClone()).Firefox for Android: Version 103 serialized properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox for Android: Version 104 adds serialization of stack in the main thread (window.postMessage() and structuredClone()).Firefox for Android: Version 110 adds serialization of stack in workers (worker.postMessage() and structuredClone()).
javascript.builtins.Error.stack Firefox11/9/2004 Chrome9/15/20091771
javascript.builtins.Error.toString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.EvalError 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.EvalError.EvalError 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.EvalError.serializable_object 📋Chrome9/10/2019 Firefox7/26/20221050
Firefox: Version 103 serializable properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox: Version 104 also serializes stack in the main thread (window.postMessage() and structuredClone()).Firefox: Version 110 also serializes stack in workers (worker.postMessage() and structuredClone()).Firefox for Android: Version 103 serializable properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox for Android: Version 104 also serializes stack in the main thread (window.postMessage() and structuredClone()).Firefox for Android: Version 110 also serializes stack in workers (worker.postMessage() and structuredClone()).
javascript.builtins.FinalizationRegistry 📋Chrome7/27/2020 Firefox7/28/20201
javascript.builtins.FinalizationRegistry.FinalizationRegistry 📋Chrome7/27/2020 Firefox7/28/20201
javascript.builtins.FinalizationRegistry.register 📋Chrome7/27/2020 Firefox7/28/20201
javascript.builtins.FinalizationRegistry.unregister 📋Chrome7/27/2020 Firefox7/28/20201
javascript.builtins.Float32Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Float32Array.Float32Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Float32Array.Float32Array.constructor_without_parameters Chrome10/19/2010 Firefox8/8/20172485
javascript.builtins.Float32Array.Float32Array.iterable_allowed Chrome11/18/2014 Firefox3/7/2017840
javascript.builtins.Float64Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Float64Array.Float64Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Float64Array.Float64Array.constructor_without_parameters Chrome10/19/2010 Firefox8/8/20172485
javascript.builtins.Float64Array.Float64Array.iterable_allowed Chrome11/18/2014 Firefox3/7/2017840
javascript.builtins.Function 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Function.@@hasInstance 📋Chrome4/13/2016 Firefox11/15/2016216
javascript.builtins.Function.Function 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Function.apply 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Function.apply.generic_arrays_as_arguments Firefox3/22/2011 Chrome2/8/2012323
javascript.builtins.Function.arguments Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Function.bind 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Function.call 📋Firefox11/9/2004 Chrome12/11/20081493
Node.js: When calling this method, thisArg does not default to the global object.
javascript.builtins.Function.caller Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Function.length 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Function.length.configurable_true Firefox3/31/2015 Chrome5/19/201549
javascript.builtins.Function.name 📋Firefox11/9/2004 Chrome10/25/20112541
javascript.builtins.Function.name.configurable_true Firefox5/12/2015 Chrome5/19/20157
javascript.builtins.Function.name.inferred_names Chrome5/25/2016 Firefox4/19/2017329
Edge: Names for functions defined in a dictionary are properly assigned; however, anonymous functions defined on a var/let variable assignment have blank names.
javascript.builtins.Function.toString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Function.toString.toString_revision Firefox6/13/2017 Chrome4/17/2018308
javascript.builtins.Generator 📋Firefox12/10/2013 Chrome11/18/2014343
javascript.builtins.Generator.next 📋Firefox12/10/2013 Chrome11/18/2014343
javascript.builtins.Generator.return 📋Firefox5/12/2015 Chrome4/13/2016337
javascript.builtins.Generator.throw 📋Firefox12/10/2013 Chrome11/18/2014343
javascript.builtins.GeneratorFunction 📋Firefox12/10/2013 Chrome11/18/2014343
javascript.builtins.GeneratorFunction.GeneratorFunction 📋Firefox12/10/2013 Chrome11/18/2014343
javascript.builtins.Infinity 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Int16Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Int16Array.Int16Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Int16Array.Int16Array.constructor_without_parameters Chrome10/19/2010 Firefox8/8/20172485
javascript.builtins.Int16Array.Int16Array.iterable_allowed Chrome11/18/2014 Firefox3/7/2017840
javascript.builtins.Int32Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Int32Array.Int32Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Int32Array.Int32Array.constructor_without_parameters Chrome10/19/2010 Firefox8/8/20172485
javascript.builtins.Int32Array.Int32Array.iterable_allowed Chrome11/18/2014 Firefox3/7/2017840
javascript.builtins.Int8Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Int8Array.Int8Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Int8Array.Int8Array.constructor_without_parameters Chrome10/19/2010 Firefox8/8/20172485
javascript.builtins.Int8Array.Int8Array.iterable_allowed Chrome11/18/2014 Firefox3/7/2017840
javascript.builtins.Intl 📋Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.Collator 📋Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the Collator() constructor for more details.
javascript.builtins.Intl.Collator.Collator 📋Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the Collator instance silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Intl.Collator.Collator.options_caseFirst_parameter Chrome1/10/2013 Firefox8/8/20171671
javascript.builtins.Intl.Collator.Collator.options_collation_parameter Chrome10/20/2020 Firefox1/26/202198
javascript.builtins.Intl.Collator.Collator.options_ignorePunctuation_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.Collator.Collator.options_localeMatcher_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.Collator.Collator.options_numeric_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.Collator.Collator.options_sensitivity_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.Collator.Collator.options_usage_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.Collator.compare 📋Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the Collator() constructor for more details.
javascript.builtins.Intl.Collator.resolvedOptions 📋Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the Collator() constructor for more details.
javascript.builtins.Intl.Collator.supportedLocalesOf 📋Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Intl.DateTimeFormat 📋Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() constructor for more details.
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat 📋Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the DateTimeFormat instance silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.IntlLegacyConstructedSymbol 📋Firefox6/13/2017 Chrome5/25/20211442
Chrome: The fallback symbol property has description IntlFallback.Chrome Android: The fallback symbol property has description IntlFallback.Edge: The fallback symbol property has description IntlFallback.Node.js: The fallback symbol property has description IntlFallback.Quest Browser: The fallback symbol property has description IntlFallback.Opera: The fallback symbol property has description IntlFallback.Opera Android: The fallback symbol property has description IntlFallback.Samsung Internet: The fallback symbol property has description IntlFallback.WebView Android: The fallback symbol property has description IntlFallback.
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.locales_parameter Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the DateTimeFormat instance silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_calendar_parameter Chrome2/4/2020 Firefox5/5/202091
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_dateStyle_parameter Chrome7/30/2019 Firefox7/28/2020364
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_dayPeriod_parameter Firefox7/13/2021 Chrome7/20/20217
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_fractionalSecondDigits_parameter Chrome7/27/2020 Firefox12/15/2020141
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_hourCycle_parameter Firefox1/23/2018 Chrome3/12/2019413
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_numberingSystem_parameter Chrome2/4/2020 Firefox5/5/202091
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_timeStyle_parameter Chrome7/30/2019 Firefox7/28/2020364
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_timeZoneName_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_timeZoneName_parameter.extended_values Firefox8/10/2021 Chrome10/19/202170
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_timeZone_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_timeZone_parameter.iana_time_zones Chrome1/10/2013 Firefox3/7/20171517
javascript.builtins.Intl.DateTimeFormat.format 📋Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() constructor for more details.
javascript.builtins.Intl.DateTimeFormat.formatRange 📋Chrome7/30/2019 Firefox8/10/2021742
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() constructor for more details.
javascript.builtins.Intl.DateTimeFormat.formatRangeToParts 📋Chrome7/30/2019 Firefox8/10/2021742
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() constructor for more details.
javascript.builtins.Intl.DateTimeFormat.formatToParts 📋Firefox1/24/2017 Chrome3/9/201744
Chrome: Before version 71, formatToParts() returned an object with an incorrectly cased type key of dayperiod. Version 71 and later use the specification defined dayPeriod. See bug 41402623.Chrome Android: Before version 71, formatToParts() returned an object with an incorrectly cased type key of dayperiod. Version 71 and later use the specification defined dayPeriod. See bug 41402623.Node.js: Before version 12.0.0, formatToParts() returned an object with an incorrectly cased type key of dayperiod. Version 12.0.0 and later use the specification defined dayPeriod. See bug 41402623.Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() constructor for more details.Quest Browser: Before version 6.0, formatToParts() returned an object with an incorrectly cased type key of dayperiod. Version 71 and later use the specification defined dayPeriod. See bug 41402623.Opera: Before version 58, formatToParts() returned an object with an incorrectly cased type key of dayperiod. Version 58 and later use the specification defined dayPeriod. See bug 41402623.Opera Android: Before version 50, formatToParts() returned an object with an incorrectly cased type key of dayperiod. Version 50 and later use the specification defined dayPeriod. See bug 41402623.Samsung Internet: Before version 71, formatToParts() returned an object with an incorrectly cased type key of dayperiod. Version 71 and later use the specification defined dayPeriod. See bug 41402623.WebView Android: Before version 71, formatToParts() returned an object with an incorrectly cased type key of dayperiod. Version 71 and later use the specification defined dayPeriod. See bug 41402623.
javascript.builtins.Intl.DateTimeFormat.resolvedOptions 📋Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the DateTimeFormat() constructor for more details.
javascript.builtins.Intl.DateTimeFormat.resolvedOptions.computed_timezone Chrome5/20/2014 Firefox4/19/20171065
javascript.builtins.Intl.DateTimeFormat.supportedLocalesOf 📋Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Intl.DisplayNames 📋Chrome4/7/2020 Firefox2/23/2021322
javascript.builtins.Intl.DisplayNames.DisplayNames 📋Chrome4/7/2020 Firefox2/23/2021322
javascript.builtins.Intl.DisplayNames.of 📋Chrome4/7/2020 Firefox2/23/2021322
javascript.builtins.Intl.DisplayNames.resolvedOptions 📋Chrome4/7/2020 Firefox2/23/2021322
javascript.builtins.Intl.DisplayNames.supportedLocalesOf 📋Chrome4/7/2020 Firefox2/23/2021322
javascript.builtins.Intl.ListFormat 📋Chrome1/29/2019 Firefox6/30/2020518
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the ListFormat() constructor for more details.Safari: Only available on macOS Big Sur (11) and above.
javascript.builtins.Intl.ListFormat.ListFormat 📋Chrome1/29/2019 Firefox6/30/2020518
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the ListFormat instance silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.Safari: Only available on macOS Big Sur (11) and above.
javascript.builtins.Intl.ListFormat.format 📋Chrome1/29/2019 Firefox6/30/2020518
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the ListFormat() constructor for more details.Safari: Only available on macOS Big Sur (11) and above.
javascript.builtins.Intl.ListFormat.formatToParts 📋Chrome1/29/2019 Firefox6/30/2020518
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the ListFormat() constructor for more details.Safari: Only available on macOS Big Sur (11) and above.
javascript.builtins.Intl.ListFormat.resolvedOptions 📋Chrome1/29/2019 Firefox6/30/2020518
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the ListFormat() constructor for more details.Safari: Only available on macOS Big Sur (11) and above.
javascript.builtins.Intl.ListFormat.supportedLocalesOf 📋Chrome1/29/2019 Firefox6/30/2020518
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.Safari: Only available on macOS Big Sur (11) and above.
javascript.builtins.Intl.Locale 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.Locale 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.baseName 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.calendar 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.caseFirst 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.collation 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.hourCycle 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.language 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.maximize 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.minimize 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.numberingSystem 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.numeric 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.region 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.script 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.Locale.toString 📋Chrome4/23/2019 Firefox4/7/2020350
javascript.builtins.Intl.NumberFormat 📋Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the NumberFormat() constructor for more details.
javascript.builtins.Intl.NumberFormat.NumberFormat 📋Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.NumberFormat.NumberFormat.IntlLegacyConstructedSymbol 📋Firefox6/13/2017 Chrome5/25/20211442
Chrome: The fallback symbol property has description IntlFallback.Chrome Android: The fallback symbol property has description IntlFallback.Edge: The fallback symbol property has description IntlFallback.Node.js: The fallback symbol property has description IntlFallback.Quest Browser: The fallback symbol property has description IntlFallback.Opera: The fallback symbol property has description IntlFallback.Opera Android: The fallback symbol property has description IntlFallback.Samsung Internet: The fallback symbol property has description IntlFallback.WebView Android: The fallback symbol property has description IntlFallback.
javascript.builtins.Intl.NumberFormat.NumberFormat.locales_parameter Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the NumberFormat instance silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_compactDisplay_parameter Chrome9/10/2019 Firefox6/30/2020294
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_currencyDisplay_parameter Chrome9/10/2019 Firefox6/30/2020294
Safari: Doesn't support currencyDisplay: 'narrowSymbol'.Safari on iOS: Doesn't support currencyDisplay: 'narrowSymbol'.WebView on iOS: Doesn't support currencyDisplay: 'narrowSymbol'.
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_currencySign_parameter Chrome9/10/2019 Firefox6/30/2020294
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_currency_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_localeMatcher_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_maximumFractionDigits_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_maximumSignificantDigits_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_minimumFractionDigits_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_minimumIntegerDigits_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_minimumSignificantDigits_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_notation_parameter Chrome9/10/2019 Firefox6/30/2020294
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_numberingSystem_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_roundingIncrement_parameter Chrome9/27/2022 Firefox8/1/2023308
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_roundingMode_parameter Chrome9/27/2022 Firefox8/1/2023308
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_roundingPriority_parameter Chrome9/27/2022 Firefox8/1/2023308
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_signDisplay_parameter Chrome9/10/2019 Firefox6/30/2020294
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_signDisplay_parameter.negative Chrome9/27/2022 Firefox8/1/2023308
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_style_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_trailingZeroDisplay_parameter Chrome9/27/2022 Firefox8/1/2023308
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_unitDisplay_parameter Chrome9/10/2019 Firefox6/30/2020294
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_unit_parameter Chrome9/10/2019 Firefox6/30/2020294
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_useGrouping_parameter Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the NumberFormat instance silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Intl.NumberFormat.NumberFormat.options_parameter.options_useGrouping_parameter.string_values Chrome9/27/2022 Firefox8/1/2023308
javascript.builtins.Intl.NumberFormat.format 📋Chrome1/10/2013 Firefox4/29/2014474
Edge: Before Edge 18, numbers are rounded to 15 decimal digits. For example, new Intl.NumberFormat('en-US').format(1000000000000005) returns "1,000,000,000,000,010".Internet Explorer: In Internet Explorer 11, numbers are rounded to 15 decimal digits. For example, new Intl.NumberFormat('en-US').format(1000000000000005) returns "1,000,000,000,000,010".Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the NumberFormat() constructor for more details.
javascript.builtins.Intl.NumberFormat.format.number_parameter-string_decimal Chrome9/27/2022 Firefox8/1/2023308
javascript.builtins.Intl.NumberFormat.formatRange 📋Chrome9/27/2022 Firefox8/1/2023308
javascript.builtins.Intl.NumberFormat.formatRangeToParts 📋Chrome9/27/2022 Firefox8/1/2023308
javascript.builtins.Intl.NumberFormat.formatToParts 📋Chrome1/23/2018 Firefox1/23/2018
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the NumberFormat() constructor for more details.
javascript.builtins.Intl.NumberFormat.resolvedOptions 📋Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the NumberFormat() constructor for more details.
javascript.builtins.Intl.NumberFormat.supportedLocalesOf 📋Chrome1/10/2013 Firefox4/29/2014474
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Intl.PluralRules 📋Chrome12/6/2017 Firefox1/23/201848
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the PluralRules() constructor for more details.
javascript.builtins.Intl.PluralRules.PluralRules 📋Chrome12/6/2017 Firefox1/23/201848
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the PluralRules instance silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Intl.PluralRules.PluralRules.options_parameter Chrome9/27/2022 Firefox8/1/2023308
javascript.builtins.Intl.PluralRules.PluralRules.options_parameter.options_roundingMode_parameter Firefox8/1/2023 Chrome9/12/202342
javascript.builtins.Intl.PluralRules.PluralRules.options_parameter.options_roundingPriority_parameter Chrome9/27/2022 Firefox8/1/2023308
javascript.builtins.Intl.PluralRules.resolvedOptions 📋Chrome12/6/2017 Firefox1/23/201848
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the PluralRules() constructor for more details.
javascript.builtins.Intl.PluralRules.select 📋Chrome12/6/2017 Firefox1/23/201848
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the PluralRules() constructor for more details.
javascript.builtins.Intl.PluralRules.selectRange 📋Chrome9/27/2022 Firefox8/1/2023308
javascript.builtins.Intl.PluralRules.supportedLocalesOf 📋Chrome12/6/2017 Firefox1/23/201848
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the PluralRules() constructor for more details.
javascript.builtins.Intl.RelativeTimeFormat 📋Chrome12/4/2018 Firefox1/29/201956
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the RelativeTimeFormat() constructor for more details.
javascript.builtins.Intl.RelativeTimeFormat.RelativeTimeFormat 📋Chrome12/4/2018 Firefox1/29/201956
javascript.builtins.Intl.RelativeTimeFormat.RelativeTimeFormat.locales_parameter Chrome12/4/2018 Firefox1/29/201956
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the RelativeTimeFormat instance silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Intl.RelativeTimeFormat.RelativeTimeFormat.options_parameter.options_localeMatcher_parameter Chrome12/4/2018 Firefox1/29/201956
javascript.builtins.Intl.RelativeTimeFormat.RelativeTimeFormat.options_parameter.options_numberingSystem_parameter Chrome12/4/2018 Firefox5/5/2020518
javascript.builtins.Intl.RelativeTimeFormat.RelativeTimeFormat.options_parameter.options_numeric_parameter Chrome12/4/2018 Firefox1/29/201956
javascript.builtins.Intl.RelativeTimeFormat.format 📋Chrome12/4/2018 Firefox1/29/201956
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the RelativeTimeFormat() constructor for more details.
javascript.builtins.Intl.RelativeTimeFormat.formatToParts 📋Chrome12/4/2018 Firefox10/22/2019322
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the RelativeTimeFormat() constructor for more details.
javascript.builtins.Intl.RelativeTimeFormat.resolvedOptions 📋Chrome12/4/2018 Firefox1/29/201956
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. See the RelativeTimeFormat() constructor for more details.
javascript.builtins.Intl.RelativeTimeFormat.supportedLocalesOf 📋Chrome12/4/2018 Firefox1/29/201956
Node.js: Before version 13.0.0, only the locale data for en-US is available by default. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Intl.Segmenter 📋Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segmenter.Segmenter 📋Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segmenter.resolvedOptions 📋Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segmenter.segment 📋Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segmenter.supportedLocalesOf 📋Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segments 📋Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segments.@@iterator 📋Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.Segments.containing 📋Chrome11/17/2020 Firefox4/16/20241246
javascript.builtins.Intl.getCanonicalLocales 📋Firefox8/2/2016 Chrome10/12/201671
javascript.builtins.Intl.supportedValuesOf 📋Firefox10/5/2021 Chrome3/1/2022147
javascript.builtins.Iterator 📋Firefox11/20/2012 Chrome10/7/2014686
javascript.builtins.Iterator.@@iterator 📋Chrome10/7/2014 Firefox2/24/2015140
Firefox: A placeholder property named @@iterator is used.Firefox: A placeholder property named iterator is used.Firefox for Android: A placeholder property named @@iterator is used.Firefox for Android: A placeholder property named iterator is used.
javascript.builtins.Iterator.Iterator 📋Chrome2/20/2024 Firefox10/1/2024224
javascript.builtins.Iterator.drop 📋Chrome2/20/2024 Firefox10/1/2024224
javascript.builtins.Iterator.every 📋Chrome2/20/2024 Firefox10/1/2024224
javascript.builtins.Iterator.filter 📋Chrome2/20/2024 Firefox10/1/2024224
javascript.builtins.Iterator.find 📋Chrome2/20/2024 Firefox10/1/2024224
javascript.builtins.Iterator.flatMap 📋Chrome2/20/2024 Firefox10/1/2024224
javascript.builtins.Iterator.forEach 📋Chrome2/20/2024 Firefox10/1/2024224
javascript.builtins.Iterator.from 📋Chrome2/20/2024 Firefox10/1/2024224
javascript.builtins.Iterator.map 📋Chrome2/20/2024 Firefox10/1/2024224
javascript.builtins.Iterator.reduce 📋Chrome2/20/2024 Firefox10/1/2024224
javascript.builtins.Iterator.some 📋Chrome2/20/2024 Firefox10/1/2024224
javascript.builtins.Iterator.take 📋Chrome2/20/2024 Firefox10/1/2024224
javascript.builtins.Iterator.toArray 📋Chrome2/20/2024 Firefox10/1/2024224
javascript.builtins.JSON 📋Firefox6/30/2009 Chrome9/15/200977
javascript.builtins.JSON.isRawJSON 📋Chrome5/30/2023 Firefox2/4/2025616
javascript.builtins.JSON.json_superset Chrome4/17/2018 Firefox9/5/2018141
javascript.builtins.JSON.parse 📋Firefox6/30/2009 Chrome9/15/200977
javascript.builtins.JSON.parse.reviver_parameter_context_argument 📋Chrome5/30/2023 Firefox2/4/2025616
javascript.builtins.JSON.rawJSON 📋Chrome5/30/2023 Firefox2/4/2025616
javascript.builtins.JSON.stringify 📋Firefox6/30/2009 Chrome9/15/200977
javascript.builtins.JSON.stringify.well_formed_stringify Firefox12/11/2018 Chrome1/29/201949
javascript.builtins.Map 📋Firefox6/5/2012 Chrome10/7/2014854
javascript.builtins.Map.@@iterator 📋Chrome10/7/2014 Firefox2/24/2015140
Firefox: A placeholder property named @@iterator is used.Firefox: A placeholder property named iterator is used.Firefox for Android: A placeholder property named @@iterator is used.Firefox for Android: A placeholder property named iterator is used.
javascript.builtins.Map.@@species 📋Firefox9/22/2015 Chrome5/25/2016246
javascript.builtins.Map.Map 📋Firefox6/5/2012 Chrome10/7/2014854
javascript.builtins.Map.Map.iterable_allowed Firefox6/5/2012 Chrome10/7/2014854
javascript.builtins.Map.Map.null_allowed Chrome10/7/2014 Firefox3/31/2015175
javascript.builtins.Map.clear 📋Firefox2/19/2013 Chrome10/7/2014595
javascript.builtins.Map.delete 📋Firefox6/5/2012 Chrome10/7/2014854
javascript.builtins.Map.entries 📋Firefox4/2/2013 Chrome10/7/2014553
javascript.builtins.Map.forEach 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Map.get 📋Firefox6/5/2012 Chrome10/7/2014854
javascript.builtins.Map.groupBy 📋Chrome9/12/2023 Firefox10/24/202342
javascript.builtins.Map.has 📋Firefox6/5/2012 Chrome10/7/2014854
javascript.builtins.Map.key_equality_for_zeros Firefox4/29/2014 Chrome10/7/2014161
javascript.builtins.Map.keys 📋Firefox4/2/2013 Chrome10/7/2014553
javascript.builtins.Map.set 📋Firefox6/5/2012 Chrome10/7/2014854
Internet Explorer: Returns 'undefined' instead of the 'Map' object.
javascript.builtins.Map.size 📋Firefox2/19/2013 Chrome10/7/2014595
Firefox: From Firefox 13 to Firefox 18, the size property was implemented as a Map.prototype.size() method, this has been changed to a property in later versions conform to the ECMAScript 2015 specification.Firefox for Android: From Firefox for Android 14 to Firefox for Android 18, the size property was implemented as a Map.prototype.size() method, this has been changed to a property in later versions conform to the ECMAScript 2015 specification.
javascript.builtins.Map.values 📋Firefox4/2/2013 Chrome10/7/2014553
javascript.builtins.Math 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.E 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.LN10 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.LN2 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.LOG10E 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.LOG2E 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.PI 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.SQRT1_2 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.SQRT2 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.abs 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.acos 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.acosh 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Math.asin 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.asinh 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Math.atan 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.atan2 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.atanh 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Math.cbrt 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Math.ceil 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.clz32 📋Firefox7/22/2014 Chrome10/7/201477
javascript.builtins.Math.cos 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.cosh 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Math.exp 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.expm1 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Math.floor 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.fround 📋Firefox12/10/2013 Chrome10/7/2014301
javascript.builtins.Math.hypot 📋Firefox2/4/2014 Chrome10/7/2014245
javascript.builtins.Math.imul 📋Firefox4/2/2013 Chrome7/9/201398
javascript.builtins.Math.log 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.log10 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Math.log1p 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Math.log2 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Math.max 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.min 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.pow 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.random 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.round 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.sign 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Math.sin 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.sinh 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Math.sqrt 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.tan 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Math.tanh 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Math.trunc 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.NaN 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Number 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Number.EPSILON 📋Firefox10/29/2013 Chrome4/8/2014161
javascript.builtins.Number.MAX_SAFE_INTEGER 📋Chrome4/8/2014 Firefox7/22/2014105
javascript.builtins.Number.MAX_VALUE 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Number.MIN_SAFE_INTEGER 📋Chrome4/8/2014 Firefox7/22/2014105
javascript.builtins.Number.MIN_VALUE 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Number.NEGATIVE_INFINITY 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Number.NaN 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Number.Number 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Number.POSITIVE_INFINITY 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Number.isFinite 📋Chrome5/15/2012 Firefox10/9/2012147
javascript.builtins.Number.isInteger 📋Firefox10/9/2012 Chrome4/8/2014546
javascript.builtins.Number.isNaN 📋Firefox8/28/2012 Chrome2/21/2013177
javascript.builtins.Number.isSafeInteger 📋Chrome4/8/2014 Firefox9/2/2014147
javascript.builtins.Number.parseFloat 📋Firefox10/29/2013 Chrome4/8/2014161
javascript.builtins.Number.parseInt 📋Firefox10/29/2013 Chrome4/8/2014161
javascript.builtins.Number.toExponential 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Number.toFixed 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Number.toLocaleString 📋Firefox11/9/2004 Chrome12/11/20081493
Edge: Before Edge 18, numbers are rounded to 15 decimal digits. For example, (1000000000000005).toLocaleString('en-US') returns "1,000,000,000,000,010".Internet Explorer: In Internet Explorer 11, numbers are rounded to 15 decimal digits. For example, (1000000000000005).toLocaleString('en-US') returns "1,000,000,000,000,010".
javascript.builtins.Number.toLocaleString.locales_parameter Chrome1/10/2013 Firefox4/29/2014474
Deno: Only the locale data for en-US is available.Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the function silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.Number.toLocaleString.options_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.Number.toPrecision 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Number.toString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Number.valueOf 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Object 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Object.Object 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Object.assign 📋Firefox12/1/2014 Chrome9/1/2015274
javascript.builtins.Object.constructor 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Object.create 📋Chrome5/25/2010 Firefox3/22/2011301
javascript.builtins.Object.defineGetter 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Starting with Firefox 48, this method can no longer be called at the global scope without any object. A TypeError will be thrown otherwise. Previously, the global object was used in these cases automatically, but this is no longer the case.
javascript.builtins.Object.defineProperties 📋Chrome5/25/2010 Firefox3/22/2011301
javascript.builtins.Object.defineProperty 📋Chrome5/25/2010 Firefox3/22/2011301
Internet Explorer: In Internet Explorer 8, this was only supported on DOM objects and with some non-standard behaviors. This was later fixed in Internet Explorer 9.Safari: Also supported in Safari 5, but not on DOM objects.Safari on iOS: Also supported in Safari for iOS 4.2, but not on DOM objects.WebView on iOS: Also supported in Safari for iOS 4.2, but not on DOM objects.
javascript.builtins.Object.defineSetter 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Starting with Firefox 48, this method can no longer be called at the global scope without any object. A TypeError will be thrown otherwise. Previously, the global object was used in these cases automatically, but this is no longer the case.
javascript.builtins.Object.entries 📋Firefox6/7/2016 Chrome10/12/2016127
javascript.builtins.Object.freeze 📋Chrome9/2/2010 Firefox3/22/2011201
javascript.builtins.Object.fromEntries 📋Firefox10/23/2018 Chrome3/12/2019140
javascript.builtins.Object.getOwnPropertyDescriptor 📋Chrome5/25/2010 Firefox3/22/2011301
Internet Explorer: In Internet Explorer 8, this was only supported on DOM objects and with some non-standard behaviors. This was later fixed in Internet Explorer 9.
javascript.builtins.Object.getOwnPropertyDescriptors 📋Chrome10/12/2016 Firefox11/15/201634
javascript.builtins.Object.getOwnPropertyNames 📋Chrome5/25/2010 Firefox3/22/2011301
javascript.builtins.Object.getOwnPropertySymbols 📋Chrome10/7/2014 Firefox2/24/2015140
javascript.builtins.Object.getPrototypeOf 📋Firefox6/30/2009 Chrome5/25/2010329
javascript.builtins.Object.groupBy 📋Chrome9/12/2023 Firefox10/24/202342
javascript.builtins.Object.hasOwn 📋Chrome8/31/2021 Firefox9/7/20217
javascript.builtins.Object.hasOwnProperty 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Object.is 📋Chrome5/15/2012 Firefox6/25/2013406
javascript.builtins.Object.isExtensible 📋Chrome9/2/2010 Firefox3/22/2011201
javascript.builtins.Object.isFrozen 📋Chrome9/2/2010 Firefox3/22/2011201
javascript.builtins.Object.isPrototypeOf 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Object.isSealed 📋Chrome9/2/2010 Firefox3/22/2011201
javascript.builtins.Object.keys 📋Chrome5/25/2010 Firefox3/22/2011301
javascript.builtins.Object.lookupGetter 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Object.lookupSetter 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Object.preventExtensions 📋Chrome9/2/2010 Firefox3/22/2011201
javascript.builtins.Object.preventExtensions.ES2015_behavior Firefox1/13/2015 Chrome7/21/2015189
javascript.builtins.Object.propertyIsEnumerable 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Object.proto 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Object.seal 📋Chrome9/2/2010 Firefox3/22/2011201
javascript.builtins.Object.setPrototypeOf 📋Chrome4/8/2014 Firefox7/22/2014105
javascript.builtins.Object.toLocaleString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Object.toString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Object.valueOf 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Object.values 📋Firefox6/7/2016 Chrome10/12/2016127
javascript.builtins.Promise 📋Chrome1/14/2014 Firefox4/29/2014105
javascript.builtins.Promise.@@species 📋Chrome5/25/2016 Firefox8/2/201669
javascript.builtins.Promise.Promise 📋Chrome1/14/2014 Firefox4/29/2014105
Firefox: Constructor requires a new operator since version 37.Firefox for Android: Constructor requires a new operator since version 37.Node.js: Constructor requires a new operator since version 4.Safari: Constructor requires a new operator since version 10.Safari on iOS: Constructor requires a new operator since version 10.WebView on iOS: Constructor requires a new operator since version 10.
javascript.builtins.Promise.all 📋Chrome1/14/2014 Firefox4/29/2014105
javascript.builtins.Promise.allSettled 📋Chrome7/30/2019 Firefox12/10/2019133
javascript.builtins.Promise.any 📋Firefox7/28/2020 Chrome8/25/202028
javascript.builtins.Promise.catch 📋Chrome1/14/2014 Firefox4/29/2014105
javascript.builtins.Promise.finally 📋Chrome12/6/2017 Firefox1/23/201848
javascript.builtins.Promise.race 📋Chrome1/14/2014 Firefox4/29/2014105
javascript.builtins.Promise.reject 📋Chrome1/14/2014 Firefox4/29/2014105
javascript.builtins.Promise.resolve 📋Chrome1/14/2014 Firefox4/29/2014105
javascript.builtins.Promise.then 📋Chrome1/14/2014 Firefox4/29/2014105
javascript.builtins.Promise.try 📋Chrome8/20/2024 Firefox1/7/2025140
javascript.builtins.Promise.withResolvers 📋Chrome10/31/2023 Firefox12/19/202349
javascript.builtins.Proxy 📋Firefox1/8/2013 Chrome3/2/20161149
javascript.builtins.Proxy.Proxy 📋Firefox1/8/2013 Chrome3/2/20161149
javascript.builtins.Proxy.handler.apply 📋Firefox1/8/2013 Chrome3/2/20161149
javascript.builtins.Proxy.handler.construct 📋Firefox1/8/2013 Chrome3/2/20161149
javascript.builtins.Proxy.handler.defineProperty 📋Firefox1/8/2013 Chrome3/2/20161149
javascript.builtins.Proxy.handler.deleteProperty 📋Firefox1/8/2013 Chrome3/2/20161149
javascript.builtins.Proxy.handler.get 📋Firefox1/8/2013 Chrome3/2/20161149
javascript.builtins.Proxy.handler.getOwnPropertyDescriptor 📋Firefox1/8/2013 Chrome3/2/20161149
javascript.builtins.Proxy.handler.getPrototypeOf 📋Chrome3/2/2016 Firefox9/20/2016202
javascript.builtins.Proxy.handler.has 📋Firefox1/8/2013 Chrome3/2/20161149
javascript.builtins.Proxy.handler.isExtensible 📋Firefox7/22/2014 Chrome3/2/2016589
javascript.builtins.Proxy.handler.ownKeys 📋Firefox1/8/2013 Chrome3/2/20161149
Firefox: In Firefox 42, the implementation got updated to reflect the final ES2015 specification: The result is now checked if it is an array and if the array elements are either of type string or of type symbol. Enumerating duplicate own property names is not a failure anymore.Firefox for Android: In Firefox for Android 42, the implementation got updated to reflect the final ES2015 specification: The result is now checked if it is an array and if the array elements are either of type string or of type symbol. Enumerating duplicate own property names is not a failure anymore.
javascript.builtins.Proxy.handler.preventExtensions 📋Firefox6/25/2013 Chrome3/2/2016981
javascript.builtins.Proxy.handler.set 📋Firefox1/8/2013 Chrome3/2/20161149
javascript.builtins.Proxy.handler.setPrototypeOf 📋Chrome3/2/2016 Firefox9/20/2016202
javascript.builtins.Proxy.revocable 📋Firefox12/1/2014 Chrome12/6/20171101
javascript.builtins.RangeError 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RangeError.RangeError 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RangeError.serializable_object 📋Chrome9/10/2019 Firefox7/26/20221050
Firefox: Version 103 serializable properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox: Version 104 also serializes stack in the main thread (window.postMessage() and structuredClone()).Firefox: Version 110 also serializes stack in workers (worker.postMessage() and structuredClone()).Firefox for Android: Version 103 serializable properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox for Android: Version 104 also serializes stack in the main thread (window.postMessage() and structuredClone()).Firefox for Android: Version 110 also serializes stack in workers (worker.postMessage() and structuredClone()).
javascript.builtins.ReferenceError 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.ReferenceError.ReferenceError 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.ReferenceError.serializable_object 📋Chrome9/10/2019 Firefox7/26/20221050
Firefox: Version 103 serializable properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox: Version 104 also serializes stack in the main thread (window.postMessage() and structuredClone()).Firefox: Version 110 also serializes stack in workers (worker.postMessage() and structuredClone()).Firefox for Android: Version 103 serializable properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox for Android: Version 104 also serializes stack in the main thread (window.postMessage() and structuredClone()).Firefox for Android: Version 110 also serializes stack in workers (worker.postMessage() and structuredClone()).
javascript.builtins.Reflect 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.Reflect.apply 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.Reflect.construct 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.Reflect.defineProperty 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.Reflect.deleteProperty 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.Reflect.get 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.Reflect.getOwnPropertyDescriptor 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.Reflect.getPrototypeOf 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.Reflect.has 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.Reflect.isExtensible 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.Reflect.ownKeys 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.Reflect.preventExtensions 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.Reflect.set 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.Reflect.setPrototypeOf 📋Firefox11/3/2015 Chrome3/2/2016120
javascript.builtins.RegExp 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.@@match 📋Chrome4/13/2016 Firefox9/20/2016160
javascript.builtins.RegExp.@@matchAll 📋Chrome3/12/2019 Firefox5/21/201970
javascript.builtins.RegExp.@@replace 📋Chrome4/13/2016 Firefox9/20/2016160
javascript.builtins.RegExp.@@search 📋Chrome4/13/2016 Firefox9/20/2016160
javascript.builtins.RegExp.@@species 📋Chrome5/25/2016 Firefox9/20/2016118
javascript.builtins.RegExp.@@split 📋Chrome4/13/2016 Firefox9/20/2016160
javascript.builtins.RegExp.RegExp 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.compile 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.dotAll 📋Chrome10/17/2017 Firefox6/30/2020987
javascript.builtins.RegExp.exec 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.flags 📋Firefox3/31/2015 Chrome3/2/2016337
javascript.builtins.RegExp.global 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.global.prototype_accessor Firefox5/12/2015 Chrome1/20/2016253
javascript.builtins.RegExp.hasIndices 📋Chrome4/13/2021 Firefox4/19/20216
javascript.builtins.RegExp.ignoreCase 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.ignoreCase.prototype_accessor Firefox5/12/2015 Chrome1/20/2016253
javascript.builtins.RegExp.input 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.lastIndex 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.lastMatch 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.lastParen 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.leftContext 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.multiline 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.multiline.prototype_accessor Firefox5/12/2015 Chrome1/20/2016253
javascript.builtins.RegExp.n 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.rightContext 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.source 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.source.empty_regex_string Chrome9/2/2010 Firefox5/12/20151713
javascript.builtins.RegExp.source.escaping Firefox5/12/2015 Chrome3/12/20191400
javascript.builtins.RegExp.source.prototype_accessor Firefox9/22/2015 Chrome1/20/2016120
javascript.builtins.RegExp.sticky 📋Firefox6/17/2008 Chrome3/2/20162815
javascript.builtins.RegExp.sticky.anchored_sticky_flag Firefox1/26/2016 Chrome3/2/201636
javascript.builtins.RegExp.sticky.prototype_accessor Firefox5/12/2015 Chrome3/2/2016295
javascript.builtins.RegExp.test 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.toString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.RegExp.toString.escaping Firefox5/12/2015 Chrome3/12/20191400
javascript.builtins.RegExp.unicode 📋Chrome4/13/2016 Firefox4/26/201613
Edge: Case folding is implemented in version 13Node.js: Case folding is implemented in version 8.6.0
javascript.builtins.RegExp.unicodeSets 📋Chrome4/4/2023 Firefox8/1/2023119
javascript.builtins.Set 📋Firefox6/5/2012 Chrome10/7/2014854
javascript.builtins.Set.@@iterator 📋Firefox2/24/2015 Chrome5/19/201584
Firefox: A placeholder property named @@iterator is used.Firefox: A placeholder property named iterator is used.Firefox for Android: A placeholder property named @@iterator is used.Firefox for Android: A placeholder property named iterator is used.
javascript.builtins.Set.@@species 📋Firefox9/22/2015 Chrome5/25/2016246
javascript.builtins.Set.Set 📋Firefox6/5/2012 Chrome10/7/2014854
javascript.builtins.Set.Set.iterable_allowed Firefox6/5/2012 Chrome10/7/2014854
javascript.builtins.Set.Set.null_allowed Chrome10/7/2014 Firefox3/31/2015175
javascript.builtins.Set.add 📋Firefox6/5/2012 Chrome10/7/2014854
Internet Explorer: Returns 'undefined' instead of the 'Set' object.
javascript.builtins.Set.clear 📋Firefox2/19/2013 Chrome10/7/2014595
javascript.builtins.Set.delete 📋Firefox6/5/2012 Chrome10/7/2014854
javascript.builtins.Set.difference 📋Chrome2/20/2024 Firefox6/11/2024112
javascript.builtins.Set.entries 📋Firefox9/17/2013 Chrome10/7/2014385
javascript.builtins.Set.forEach 📋Firefox10/29/2013 Chrome10/7/2014343
javascript.builtins.Set.has 📋Firefox6/5/2012 Chrome10/7/2014854
javascript.builtins.Set.intersection 📋Chrome2/20/2024 Firefox6/11/2024112
javascript.builtins.Set.isDisjointFrom 📋Chrome2/20/2024 Firefox6/11/2024112
javascript.builtins.Set.isSubsetOf 📋Chrome2/20/2024 Firefox6/11/2024112
javascript.builtins.Set.isSupersetOf 📋Chrome2/20/2024 Firefox6/11/2024112
javascript.builtins.Set.key_equality_for_zeros Firefox4/29/2014 Chrome10/7/2014161
javascript.builtins.Set.keys 📋Firefox9/17/2013 Chrome10/7/2014385
javascript.builtins.Set.size 📋Firefox2/19/2013 Chrome10/7/2014595
Firefox: From Firefox 13 to Firefox 18, the size property was implemented as a Set.prototype.size() method, this has been changed to a property in later versions conform to the ECMAScript 2015 specification.Firefox for Android: From Firefox for Android 14 to Firefox for Android 18, the size property was implemented as a Set.prototype.size() method, this has been changed to a property in later versions conform to the ECMAScript 2015 specification.
javascript.builtins.Set.symmetricDifference 📋Chrome2/20/2024 Firefox6/11/2024112
javascript.builtins.Set.union 📋Chrome2/20/2024 Firefox6/11/2024112
javascript.builtins.Set.values 📋Firefox9/17/2013 Chrome10/7/2014385
javascript.builtins.SharedArrayBuffer 📋Chrome7/24/2018 Firefox7/28/2020735
javascript.builtins.SharedArrayBuffer.@@species 📋Chrome7/24/2018 Firefox7/28/2020735
javascript.builtins.SharedArrayBuffer.SharedArrayBuffer 📋Chrome7/24/2018 Firefox7/28/2020735
javascript.builtins.SharedArrayBuffer.SharedArrayBuffer.maxByteLength_option 📋Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.SharedArrayBuffer.byteLength 📋Chrome7/24/2018 Firefox7/28/2020735
javascript.builtins.SharedArrayBuffer.grow 📋Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.SharedArrayBuffer.growable 📋Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.SharedArrayBuffer.maxByteLength 📋Chrome3/7/2023 Firefox7/9/2024490
javascript.builtins.SharedArrayBuffer.slice 📋Chrome7/24/2018 Firefox7/28/2020735
javascript.builtins.String 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.@@iterator 📋Chrome10/7/2014 Firefox2/24/2015140
Firefox: A placeholder property named @@iterator is used.Firefox: A placeholder property named iterator is used.Firefox for Android: A placeholder property named @@iterator is used.Firefox for Android: A placeholder property named iterator is used.
javascript.builtins.String.String 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.anchor 📋Firefox11/9/2004 Chrome12/11/20081493
Firefox: Starting with version 17, the quotation mark (") is replaced by its HTML reference character (") in strings supplied for the name parameter.
javascript.builtins.String.at 📋Firefox7/13/2021 Chrome7/20/20217
javascript.builtins.String.big 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.blink 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.bold 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.charAt 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.charCodeAt 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.codePointAt 📋Firefox4/29/2014 Chrome3/3/2015308
javascript.builtins.String.concat 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.endsWith 📋Firefox11/20/2012 Chrome3/3/2015833
javascript.builtins.String.fixed 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.fontcolor 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.fontsize 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.fromCharCode 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.fromCodePoint 📋Firefox4/29/2014 Chrome3/3/2015308
javascript.builtins.String.includes 📋Chrome3/3/2015 Firefox8/11/2015161
javascript.builtins.String.indexOf 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.isWellFormed 📋Chrome3/7/2023 Firefox10/24/2023231
javascript.builtins.String.italics 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.lastIndexOf 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.length 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.link 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.localeCompare 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.localeCompare.locales_parameter Chrome1/10/2013 Firefox4/29/2014474
Deno: Only the locale data for en-US is available.Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the function silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.String.localeCompare.options_parameter Chrome1/10/2013 Firefox4/29/2014474
javascript.builtins.String.match 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.matchAll 📋Chrome3/12/2019 Firefox5/21/201970
javascript.builtins.String.normalize 📋Chrome4/8/2014 Firefox7/22/2014105
javascript.builtins.String.padEnd 📋Firefox8/2/2016 Chrome3/9/2017219
javascript.builtins.String.padStart 📋Firefox8/2/2016 Chrome3/9/2017219
javascript.builtins.String.raw 📋Firefox12/1/2014 Chrome3/3/201592
javascript.builtins.String.repeat 📋Firefox9/17/2013 Chrome3/3/2015532
javascript.builtins.String.replace 📋Firefox11/9/2004 Chrome12/11/20081493
Internet Explorer: A replacement function as second argument is not supported.
javascript.builtins.String.replaceAll 📋Firefox6/2/2020 Chrome8/25/202084
javascript.builtins.String.search 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.slice 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.small 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.split 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.startsWith 📋Firefox11/20/2012 Chrome3/3/2015833
javascript.builtins.String.strike 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.sub 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.substr 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.substring 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.sup 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.toLocaleLowerCase 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.toLocaleLowerCase.locales_parameter Chrome4/19/2017 Firefox8/8/2017111
Deno: Only the locale data for en-US is available.Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the function silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.String.toLocaleUpperCase 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.toLocaleUpperCase.locales_parameter Chrome4/19/2017 Firefox8/8/2017111
Deno: Only the locale data for en-US is available.Node.js: Before version 13.0.0, only the locale data for en-US is available by default. When other locales are specified, the function silently falls back to en-US. To make full ICU (locale) data available before version 13, see Node.js documentation on the --with-intl option and how to provide the data.
javascript.builtins.String.toLowerCase 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.toString 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.toUpperCase 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.String.toWellFormed 📋Chrome3/7/2023 Firefox10/24/2023231
javascript.builtins.String.trim 📋Firefox6/30/2009 Chrome1/25/2010209
javascript.builtins.String.trimEnd 📋Chrome4/17/2018 Firefox6/26/201870
javascript.builtins.String.trimStart 📋Chrome4/17/2018 Firefox6/26/201870
javascript.builtins.String.unicode_code_point_escapes Chrome12/11/2008 Firefox8/11/20152434
javascript.builtins.String.valueOf 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.Symbol 📋Chrome10/7/2014 Firefox2/24/2015140
Edge: Edge 12 included Symbol properties in JSON.stringify() output.
javascript.builtins.Symbol.@@toPrimitive 📋Chrome12/1/2015 Firefox1/26/201656
javascript.builtins.Symbol.Symbol 📋Chrome10/7/2014 Firefox2/24/2015140
javascript.builtins.Symbol.asyncIterator 📋Firefox11/14/2017 Chrome12/6/201722
javascript.builtins.Symbol.description 📋Chrome10/16/2018 Firefox10/23/20187
Safari: No support for an undefined description.Safari on iOS: No support for an undefined description.WebView on iOS: No support for an undefined description.
javascript.builtins.Symbol.for 📋Chrome1/21/2015 Firefox2/24/201534
javascript.builtins.Symbol.hasInstance 📋Chrome4/13/2016 Firefox11/15/2016216
javascript.builtins.Symbol.isConcatSpreadable 📋Chrome1/20/2016 Firefox8/2/2016195
javascript.builtins.Symbol.iterator 📋Firefox2/24/2015 Chrome5/19/201584
javascript.builtins.Symbol.keyFor 📋Chrome1/21/2015 Firefox2/24/201534
javascript.builtins.Symbol.match 📋Firefox8/11/2015 Chrome4/13/2016246
javascript.builtins.Symbol.matchAll 📋Chrome3/12/2019 Firefox5/21/201970
javascript.builtins.Symbol.replace 📋Chrome4/13/2016 Firefox9/20/2016160
javascript.builtins.Symbol.search 📋Chrome4/13/2016 Firefox9/20/2016160
javascript.builtins.Symbol.species 📋Firefox9/22/2015 Chrome5/25/2016246
javascript.builtins.Symbol.split 📋Chrome4/13/2016 Firefox9/20/2016160
javascript.builtins.Symbol.toPrimitive 📋Chrome12/1/2015 Firefox1/26/201656
javascript.builtins.Symbol.toString 📋Chrome10/7/2014 Firefox2/24/2015140
javascript.builtins.Symbol.toStringTag 📋Chrome3/2/2016 Firefox1/24/2017328
javascript.builtins.Symbol.toStringTag.dom_objects Chrome4/13/2016 Firefox6/30/20201539
javascript.builtins.Symbol.unscopables 📋Chrome10/7/2014 Firefox8/2/2016665
javascript.builtins.Symbol.valueOf 📋Chrome10/7/2014 Firefox2/24/2015140
javascript.builtins.SyntaxError 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.SyntaxError.SyntaxError 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.SyntaxError.serializable_object 📋Chrome9/10/2019 Firefox7/26/20221050
Firefox: Version 103 serializable properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox: Version 104 also serializes stack in the main thread (window.postMessage() and structuredClone()).Firefox: Version 110 also serializes stack in workers (worker.postMessage() and structuredClone()).Firefox for Android: Version 103 serializable properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox for Android: Version 104 also serializes stack in the main thread (window.postMessage() and structuredClone()).Firefox for Android: Version 110 also serializes stack in workers (worker.postMessage() and structuredClone()).
javascript.builtins.TypeError 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.TypeError.TypeError 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.TypeError.serializable_object 📋Chrome9/10/2019 Firefox7/26/20221050
Firefox: Version 103 serializable properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox: Version 104 also serializes stack in the main thread (window.postMessage() and structuredClone()).Firefox: Version 110 also serializes stack in workers (worker.postMessage() and structuredClone()).Firefox for Android: Version 103 serializable properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox for Android: Version 104 also serializes stack in the main thread (window.postMessage() and structuredClone()).Firefox for Android: Version 110 also serializes stack in workers (worker.postMessage() and structuredClone()).
javascript.builtins.TypedArray 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.TypedArray.@@iterator 📋Chrome10/7/2014 Firefox2/24/2015140
Firefox: A placeholder property named @@iterator is used.Firefox: A placeholder property named iterator is used.Firefox for Android: A placeholder property named @@iterator is used.Firefox for Android: A placeholder property named iterator is used.
javascript.builtins.TypedArray.@@species 📋Chrome5/25/2016 Firefox8/2/201669
javascript.builtins.TypedArray.BYTES_PER_ELEMENT 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.TypedArray.at 📋Firefox7/13/2021 Chrome7/20/20217
javascript.builtins.TypedArray.buffer 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.TypedArray.byteLength 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.TypedArray.byteOffset 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.TypedArray.constructor_without_parameters Chrome10/19/2010 Firefox8/8/20172485
javascript.builtins.TypedArray.copyWithin 📋Firefox12/1/2014 Chrome9/1/2015274
javascript.builtins.TypedArray.entries 📋Firefox3/31/2015 Chrome9/1/2015154
javascript.builtins.TypedArray.every 📋Firefox3/31/2015 Chrome9/1/2015154
javascript.builtins.TypedArray.fill 📋Firefox3/31/2015 Chrome9/1/2015154
javascript.builtins.TypedArray.filter 📋Firefox5/12/2015 Chrome9/1/2015112
javascript.builtins.TypedArray.find 📋Firefox3/31/2015 Chrome9/1/2015154
javascript.builtins.TypedArray.findIndex 📋Firefox3/31/2015 Chrome9/1/2015154
javascript.builtins.TypedArray.findLast 📋Chrome1/4/2022 Firefox8/23/2022231
javascript.builtins.TypedArray.findLastIndex 📋Chrome1/4/2022 Firefox8/23/2022231
javascript.builtins.TypedArray.forEach 📋Firefox5/12/2015 Chrome9/1/2015112
javascript.builtins.TypedArray.from 📋Firefox5/12/2015 Chrome9/1/2015112
javascript.builtins.TypedArray.includes 📋Chrome12/1/2015 Firefox12/15/201514
javascript.builtins.TypedArray.indexOf 📋Firefox3/31/2015 Chrome9/1/2015154
Firefox: Starting with Firefox 47, this method will no longer return -0. For example, new Uint8Array([0]).indexOf(0, -0) will now always return +0.Firefox for Android: Starting with Firefox for Android 47, this method will no longer return -0. For example, new Uint8Array([0]).indexOf(0, -0) will now always return +0.
javascript.builtins.TypedArray.index_properties_not_consulting_prototype Chrome10/19/2010 Firefox10/29/20131106
Chrome: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.Chrome Android: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.Deno: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.Edge: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.Internet Explorer: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.Node.js: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.Quest Browser: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.Opera: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.Opera Android: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.Safari: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.Safari on iOS: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.Samsung Internet: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.WebView Android: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.WebView on iOS: Negative integers are not considered as indexed properties and therefore return the value of the prototype property.
javascript.builtins.TypedArray.iterable_in_constructor Chrome11/18/2014 Firefox3/7/2017840
javascript.builtins.TypedArray.join 📋Firefox3/31/2015 Chrome9/1/2015154
javascript.builtins.TypedArray.keys 📋Chrome10/7/2014 Firefox3/31/2015175
javascript.builtins.TypedArray.lastIndexOf 📋Firefox3/31/2015 Chrome9/1/2015154
Firefox: Starting with Firefox 47, this method will no longer return -0. For example, new Uint8Array([0]).lastIndexOf(0, -0) will now always return +0.Firefox for Android: Starting with Firefox for Android 47, this method will no longer return -0. For example, new Uint8Array([0]).lastIndexOf(0, -0) will now always return +0.
javascript.builtins.TypedArray.length 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.TypedArray.map 📋Firefox5/12/2015 Chrome9/1/2015112
javascript.builtins.TypedArray.name 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.TypedArray.named_properties Chrome10/19/2010 Firefox6/10/20141330
javascript.builtins.TypedArray.of 📋Firefox5/12/2015 Chrome9/1/2015112
javascript.builtins.TypedArray.reduce 📋Firefox3/31/2015 Chrome9/1/2015154
javascript.builtins.TypedArray.reduceRight 📋Firefox3/31/2015 Chrome9/1/2015154
javascript.builtins.TypedArray.reverse 📋Firefox3/31/2015 Chrome9/1/2015154
javascript.builtins.TypedArray.set 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.TypedArray.slice 📋Firefox5/12/2015 Chrome9/1/2015112
javascript.builtins.TypedArray.some 📋Firefox3/31/2015 Chrome9/1/2015154
javascript.builtins.TypedArray.sort 📋Chrome9/1/2015 Firefox4/26/2016238
javascript.builtins.TypedArray.subarray 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.TypedArray.toLocaleString 📋Chrome10/19/2010 Firefox1/24/20172289
javascript.builtins.TypedArray.toReversed 📋Chrome2/7/2023 Firefox7/4/2023147
javascript.builtins.TypedArray.toSorted 📋Chrome2/7/2023 Firefox7/4/2023147
javascript.builtins.TypedArray.toString 📋Chrome10/19/2010 Firefox1/24/20172289
javascript.builtins.TypedArray.values 📋Chrome10/7/2014 Firefox3/31/2015175
javascript.builtins.TypedArray.with 📋Chrome2/7/2023 Firefox7/4/2023147
javascript.builtins.URIError 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.URIError.URIError 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.URIError.serializable_object 📋Chrome9/10/2019 Firefox7/26/20221050
Firefox: Version 103 serializable properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox: Version 104 also serializes stack in the main thread (window.postMessage() and structuredClone()).Firefox: Version 110 also serializes stack in workers (worker.postMessage() and structuredClone()).Firefox for Android: Version 103 serializable properties: name, message, cause, fileName, lineNumber and columnNumber.Firefox for Android: Version 104 also serializes stack in the main thread (window.postMessage() and structuredClone()).Firefox for Android: Version 110 also serializes stack in workers (worker.postMessage() and structuredClone()).
javascript.builtins.Uint16Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Uint16Array.Uint16Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Uint16Array.Uint16Array.constructor_without_parameters Chrome10/19/2010 Firefox8/8/20172485
javascript.builtins.Uint16Array.Uint16Array.iterable_allowed Chrome11/18/2014 Firefox3/7/2017840
javascript.builtins.Uint32Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Uint32Array.Uint32Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Uint32Array.Uint32Array.constructor_without_parameters Chrome10/19/2010 Firefox8/8/20172485
javascript.builtins.Uint32Array.Uint32Array.iterable_allowed Chrome11/18/2014 Firefox3/7/2017840
javascript.builtins.Uint8Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Uint8Array.Uint8Array 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Uint8Array.Uint8Array.constructor_without_parameters Chrome10/19/2010 Firefox8/8/20172485
javascript.builtins.Uint8Array.Uint8Array.iterable_allowed Chrome11/18/2014 Firefox3/7/2017840
javascript.builtins.Uint8ClampedArray 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Uint8ClampedArray.Uint8ClampedArray 📋Chrome10/19/2010 Firefox3/22/2011154
javascript.builtins.Uint8ClampedArray.Uint8ClampedArray.constructor_without_parameters Chrome10/19/2010 Firefox8/8/20172485
javascript.builtins.Uint8ClampedArray.Uint8ClampedArray.iterable_allowed Chrome11/18/2014 Firefox3/7/2017840
javascript.builtins.WeakMap 📋Firefox8/16/2011 Chrome7/16/20141065
javascript.builtins.WeakMap.WeakMap 📋Firefox8/16/2011 Chrome7/16/20141065
javascript.builtins.WeakMap.WeakMap.iterable_allowed Chrome10/7/2014 Firefox2/24/2015140
javascript.builtins.WeakMap.WeakMap.null_allowed Chrome7/16/2014 Firefox3/31/2015258
javascript.builtins.WeakMap.delete 📋Firefox8/16/2011 Chrome7/16/20141065
Firefox: Before Firefox 38, this method threw a TypeError when the key parameter was not an object. This has been fixed in version 38 and later to return false as per the ES2015 standard.Firefox for Android: Before Firefox for Android 38, this method threw a TypeError when the key parameter was not an object. This has been fixed in version 38 and later to return false as per the ES2015 standard.
javascript.builtins.WeakMap.get 📋Firefox8/16/2011 Chrome7/16/20141065
Firefox: Before Firefox 38, this method threw a TypeError when the key parameter was not an object. However, the ES2015 specification specifies to return undefined instead. Furthermore, WeakMap.prototype.get accepted an optional second argument as a fallback value, which is not part of the standard. Both non-standard behaviors are removed in version 38 and higher.Firefox for Android: Before Firefox for Android 38, this method threw a TypeError when the key parameter was not an object. However, the ES2015 specification specifies to return undefined instead. Furthermore, WeakMap.prototype.get accepted an optional second argument as a fallback value, which is not part of the standard. Both non-standard behaviors are removed in version 38 and higher.
javascript.builtins.WeakMap.has 📋Firefox8/16/2011 Chrome7/16/20141065
Firefox: Before Firefox 38, this method threw a TypeError when the key parameter was not an object. This has been fixed in version 38 and later to return false as per the ES2015 standard.Firefox for Android: Before Firefox for Android 38, this method threw a TypeError when the key parameter was not an object. This has been fixed in version 38 and later to return false as per the ES2015 standard.
javascript.builtins.WeakMap.set 📋Firefox8/16/2011 Chrome7/16/20141065
Firefox: Before Firefox 38, this method threw a TypeError when the key parameter was not an object. This has been fixed in version 38 and later to return false as per the ES2015 standard.Firefox for Android: Before Firefox for Android 38, this method threw a TypeError when the key parameter was not an object. This has been fixed in version 38 and later to return false as per the ES2015 standard.Internet Explorer: Returns 'undefined' instead of the 'Map' object.
javascript.builtins.WeakRef 📋Chrome7/27/2020 Firefox7/28/20201
javascript.builtins.WeakRef.WeakRef 📋Chrome7/27/2020 Firefox7/28/20201
javascript.builtins.WeakRef.deref 📋Chrome7/27/2020 Firefox7/28/20201
javascript.builtins.WeakSet 📋Chrome7/16/2014 Firefox12/1/2014138
javascript.builtins.WeakSet.WeakSet 📋Chrome7/16/2014 Firefox12/1/2014138
javascript.builtins.WeakSet.WeakSet.iterable_allowed Chrome10/7/2014 Firefox12/1/201455
javascript.builtins.WeakSet.WeakSet.null_allowed Chrome7/16/2014 Firefox3/31/2015258
javascript.builtins.WeakSet.add 📋Chrome7/16/2014 Firefox12/1/2014138
javascript.builtins.WeakSet.delete 📋Chrome7/16/2014 Firefox12/1/2014138
javascript.builtins.WeakSet.has 📋Chrome7/16/2014 Firefox12/1/2014138
javascript.builtins.decodeURI 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.decodeURIComponent 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.encodeURI 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.encodeURIComponent 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.escape 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.eval 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.globalThis 📋Chrome12/4/2018 Firefox1/29/201956
javascript.builtins.isFinite 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.isNaN 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.parseFloat 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.parseInt 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.parseInt.leading_zero_strings_as_decimal Chrome11/6/2012 Firefox5/14/2013189
javascript.builtins.undefined 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.builtins.unescape 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.classes 📋Chrome3/2/2016 Firefox3/8/20166
Chrome: Strict mode is required.Chrome Android: Strict mode is required.Opera: Strict mode is required.Opera Android: Strict mode is required.Samsung Internet: Strict mode is required.WebView Android: Strict mode is required.
javascript.classes.constructor 📋Chrome3/2/2016 Firefox3/8/20166
Chrome: Strict mode is required.Chrome Android: Strict mode is required.Opera: Strict mode is required.Opera Android: Strict mode is required.Samsung Internet: Strict mode is required.WebView Android: Strict mode is required.
javascript.classes.extends 📋Chrome3/2/2016 Firefox3/8/20166
Chrome: Strict mode is required.Chrome Android: Strict mode is required.Opera: Strict mode is required.Opera Android: Strict mode is required.Samsung Internet: Strict mode is required.WebView Android: Strict mode is required.
javascript.classes.private_class_fields 📋Chrome4/23/2019 Firefox7/13/2021812
javascript.classes.private_class_fields_in 📋Chrome5/25/2021 Firefox7/13/202149
javascript.classes.private_class_methods 📋Chrome7/27/2020 Firefox7/13/2021351
javascript.classes.public_class_fields 📋Chrome1/29/2019 Firefox9/3/2019217
Safari: Parentheses in field initializers can lead to ReferenceErrors. See bug 236843.Safari: Doesn't support public static fields. See bug 194095.Safari on iOS: Parentheses in field initializers can lead to ReferenceErrors. See bug 236843.Safari on iOS: Doesn't support public static fields. See bug 194095.WebView on iOS: Parentheses in field initializers can lead to ReferenceErrors. See bug 236843.WebView on iOS: Doesn't support public static fields. See bug 194095.
javascript.classes.static 📋Chrome3/2/2016 Firefox3/8/20166
Chrome: Strict mode is required.Chrome Android: Strict mode is required.Opera: Strict mode is required.Opera Android: Strict mode is required.Samsung Internet: Strict mode is required.WebView Android: Strict mode is required.
javascript.classes.static_class_fields 📋Chrome1/29/2019 Firefox4/7/2020434
javascript.classes.static_initialization_blocks 📋Chrome9/21/2021 Firefox10/5/202114
javascript.functions 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.functions.arguments 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.functions.arguments.@@iterator 📋Firefox4/26/2016 Chrome7/20/201685
javascript.functions.arguments.callee 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.functions.arguments.length 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.functions.arrow_functions 📋Firefox6/25/2013 Chrome9/1/2015798
Firefox: The initial implementation of arrow functions in Firefox made them automatically strict. This has been changed as of Firefox 24. The use of 'use strict'; is now required.Firefox: Before Firefox 39, a line terminator (\n) was incorrectly allowed after arrow function arguments. This has been fixed to conform to the ES2015 specification and code like () \n => {} will now throw a SyntaxError in this and later versions.Firefox for Android: The initial implementation of arrow functions in Firefox for Android made them automatically strict. This has been changed as of Firefox for Android 24. The use of 'use strict'; is now required.Firefox for Android: Before Firefox for Android 39, a line terminator (\n) was incorrectly allowed after arrow function arguments. This has been fixed to conform to the ES2015 specification and code like () \n => {} will now throw a SyntaxError in this and later versions.
javascript.functions.arrow_functions.trailing_comma Firefox3/7/2017 Chrome4/19/201743
javascript.functions.block_level_functions Chrome3/2/2016 Firefox4/26/201655
javascript.functions.default_parameters 📋Firefox8/28/2012 Chrome3/2/20161282
javascript.functions.default_parameters.destructured_parameter_with_default_value_assignment Firefox9/22/2015 Chrome3/2/2016162
javascript.functions.default_parameters.parameters_without_defaults_after_default_parameters Firefox12/10/2013 Chrome3/2/2016813
javascript.functions.get 📋Firefox11/29/2005 Chrome12/11/20081108
javascript.functions.get.computed_property_names Firefox12/1/2014 Chrome10/13/2015316
javascript.functions.method_definitions 📋Chrome11/18/2014 Firefox12/1/201413
javascript.functions.method_definitions.async_generator_methods Firefox8/8/2017 Chrome12/6/2017120
javascript.functions.method_definitions.async_methods Chrome12/1/2016 Firefox3/7/201796
javascript.functions.method_definitions.generator_methods_not_constructable Chrome4/14/2015 Firefox12/15/2015245
javascript.functions.rest_parameters 📋Firefox8/28/2012 Chrome12/1/20151190
javascript.functions.rest_parameters.destructuring Chrome3/2/2016 Firefox3/7/2017370
javascript.functions.set 📋Firefox11/29/2005 Chrome12/11/20081108
javascript.functions.set.computed_property_names Firefox12/1/2014 Chrome10/13/2015316
javascript.grammar.array_literals 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.grammar.binary_numeric_literals 📋Firefox10/29/2013 Chrome3/3/2015490
javascript.grammar.boolean_literals 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.grammar.decimal_numeric_literals 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.grammar.hashbang_comments 📋Chrome4/23/2019 Firefox5/21/201928
javascript.grammar.hexadecimal_escape_sequences 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.grammar.hexadecimal_numeric_literals 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.grammar.null_literal 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.grammar.numeric_separators 📋Chrome6/4/2019 Firefox10/22/2019140
javascript.grammar.octal_numeric_literals 📋Firefox10/29/2013 Chrome3/3/2015490
javascript.grammar.regular_expression_literals 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.grammar.shorthand_object_literals Firefox10/14/2014 Chrome5/19/2015217
javascript.grammar.string_literals 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.grammar.template_literals 📋Firefox12/1/2014 Chrome3/3/201592
javascript.grammar.template_literals.template_literal_revision Firefox4/19/2017 Chrome10/17/2017181
javascript.grammar.trailing_commas 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.grammar.trailing_commas.trailing_commas_in_functions Firefox3/7/2017 Chrome4/19/201743
javascript.grammar.trailing_commas.trailing_commas_in_object_literals Firefox11/9/2004 Chrome12/11/20081493
javascript.grammar.unicode_escape_sequences 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.grammar.unicode_point_escapes 📋Chrome7/21/2015 Firefox8/11/201521
javascript.operators.addition 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.addition_assignment 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.assignment 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.async_function 📋Chrome12/1/2016 Firefox3/7/201796
javascript.operators.async_generator_function 📋Firefox8/8/2017 Chrome12/6/2017120
javascript.operators.await 📋Chrome12/1/2016 Firefox3/7/201796
javascript.operators.await.top_level 📋Chrome3/2/2021 Firefox6/1/202191
Node.js: Not supported in CommonJS modules.
javascript.operators.bitwise_and 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.bitwise_and_assignment 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.bitwise_not 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.bitwise_or 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.bitwise_or_assignment 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.bitwise_xor 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.bitwise_xor_assignment 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.class 📋Chrome4/14/2015 Firefox3/8/2016329
javascript.operators.comma 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.conditional 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.decrement 📋Firefox11/9/2004 Chrome5/21/20091654
javascript.operators.delete 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.destructuring 📋Firefox9/22/2015 Chrome3/2/2016162
Firefox: Firefox provided a non-standard destructuring implementation from Firefox 2 to 40.Firefox for Android: Firefox for Android provided a non-standard destructuring implementation from Firefox for Android 4 to 40.
javascript.operators.destructuring.computed_property_names Firefox9/22/2015 Chrome3/2/2016162
javascript.operators.destructuring.rest_in_arrays Firefox9/22/2015 Chrome3/2/2016162
javascript.operators.destructuring.rest_in_objects Chrome7/25/2017 Firefox8/8/201714
javascript.operators.division 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.division_assignment 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.equality 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.exponentiation 📋Chrome7/20/2016 Firefox3/7/2017230
javascript.operators.exponentiation_assignment 📋Chrome7/20/2016 Firefox3/7/2017230
javascript.operators.function 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.function.trailing_comma Firefox3/7/2017 Chrome4/19/201743
javascript.operators.generator_function 📋Firefox12/10/2013 Chrome3/2/2016813
javascript.operators.generator_function.trailing_comma Firefox3/7/2017 Chrome4/19/201743
javascript.operators.greater_than 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.greater_than_or_equal 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.grouping 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.import 📋Chrome12/6/2017 Firefox5/21/2019531
Deno: Bundled Deno applications (using deno compile) do not support dynamic importsNode.js: Dynamic import can be used in either CommonJS or ES module files, to import either CommonJS or ES module files. See Node's ECMAScript Modules documentation for more details.Node.js: Dynamic import can be used in either CommonJS or ES module files, to import either CommonJS or ES module files. See Node's ECMAScript Modules documentation for more details.
javascript.operators.import.worker_support Chrome2/4/2020 Firefox6/6/20231218
javascript.operators.import_meta 📋Chrome1/23/2018 Firefox9/5/2018225
javascript.operators.import_meta.resolve 📋Chrome9/2/2022 Firefox10/18/202246
Node.js: Returns a URL object instead of a string.
javascript.operators.in 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.increment 📋Firefox11/9/2004 Chrome5/21/20091654
javascript.operators.inequality 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.instanceof 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.left_shift 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.left_shift_assignment 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.less_than 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.less_than_or_equal 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.logical_and 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.logical_and_assignment 📋Firefox7/28/2020 Chrome8/25/202028
javascript.operators.logical_not 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.logical_or 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.logical_or_assignment 📋Firefox7/28/2020 Chrome8/25/202028
javascript.operators.multiplication 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.multiplication_assignment 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.new 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.new_target 📋Firefox9/22/2015 Chrome10/13/201521
javascript.operators.null 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.nullish_coalescing 📋Firefox1/7/2020 Chrome2/4/202028
javascript.operators.nullish_coalescing_assignment 📋Firefox7/28/2020 Chrome8/25/202028
javascript.operators.object_initializer 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.object_initializer.computed_property_names Firefox12/1/2014 Chrome12/1/2015365
javascript.operators.object_initializer.shorthand_method_names Firefox12/1/2014 Chrome12/1/2015365
javascript.operators.object_initializer.shorthand_property_names Firefox10/14/2014 Chrome12/1/2015413
javascript.operators.object_initializer.spread_properties Chrome7/25/2017 Firefox8/8/201714
javascript.operators.optional_chaining 📋Chrome2/4/2020 Firefox3/10/202035
javascript.operators.property_accessors 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.remainder 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.remainder_assignment 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.right_shift 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.right_shift_assignment 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.spread 📋Firefox10/9/2012 Chrome10/13/20151099
javascript.operators.spread.spread_in_arrays 📋Firefox10/9/2012 Chrome10/13/20151099
javascript.operators.spread.spread_in_function_calls 📋Firefox2/4/2014 Chrome10/13/2015616
javascript.operators.spread.spread_in_object_literals 📋Chrome7/25/2017 Firefox8/8/201714
javascript.operators.strict_equality 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.strict_inequality 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.subtraction 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.subtraction_assignment 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.super 📋Chrome4/14/2015 Firefox3/8/2016329
javascript.operators.this 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.typeof 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.unary_negation 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.unary_plus 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.unsigned_right_shift 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.unsigned_right_shift_assignment 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.void 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.operators.yield 📋Firefox12/10/2013 Chrome11/18/2014343
Firefox: Starting with Firefox 33, the parsing of the yield expression has been updated to conform with the ES2015 specification.Firefox: Starting with Firefox 29, an IteratorResult object returned for completed generator function.Firefox for Android: Starting with Firefox for Android 33, the parsing of the yield expression has been updated to conform with the ES2015 specification.Firefox for Android: Starting with Firefox for Android 29, an IteratorResult object returned for completed generator function.
javascript.operators.yield_star 📋Firefox2/4/2014 Chrome11/18/2014287
Firefox: Starting with Firefox 33, the parsing of the yield expression has been updated to conform with the ES2015 specification.Firefox for Android: Starting with Firefox for Android 33, the parsing of the yield expression has been updated to conform with the ES2015 specification.
javascript.regular_expressions.backreference 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.regular_expressions.capturing_group 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.regular_expressions.character_class 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.regular_expressions.character_class_escape 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.regular_expressions.character_escape 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.regular_expressions.character_escape.unicode Chrome4/13/2016 Firefox4/26/201613
javascript.regular_expressions.disjunction 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.regular_expressions.input_boundary_assertion 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.regular_expressions.literal_character 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.regular_expressions.lookahead_assertion 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.regular_expressions.lookbehind_assertion 📋Chrome10/17/2017 Firefox6/30/2020987
javascript.regular_expressions.modifier 📋Chrome5/14/2024 Firefox10/29/2024168
javascript.regular_expressions.named_backreference 📋Chrome1/23/2018 Firefox6/30/2020889
javascript.regular_expressions.named_capturing_group 📋Chrome1/23/2018 Firefox6/30/2020889
javascript.regular_expressions.named_capturing_group.duplicate_named_capturing_groups Chrome5/14/2024 Firefox8/6/202484
javascript.regular_expressions.non_capturing_group 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.regular_expressions.quantifier 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.regular_expressions.unicode_character_class_escape 📋Chrome1/23/2018 Firefox6/30/2020889
javascript.regular_expressions.wildcard 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.regular_expressions.word_boundary_assertion 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.async_function 📋Chrome12/1/2016 Firefox3/7/201796
javascript.statements.async_generator_function 📋Firefox8/8/2017 Chrome12/6/2017120
javascript.statements.block 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.break 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.class 📋Chrome3/2/2016 Firefox3/8/20166
Chrome: Strict mode is required.Chrome Android: Strict mode is required.Opera: Strict mode is required.Opera Android: Strict mode is required.Samsung Internet: Strict mode is required.WebView Android: Strict mode is required.
javascript.statements.const 📋Chrome7/31/2012 Firefox2/24/2015938
Firefox: Before Firefox 13, const is implemented, but re-assignment is not failing.Firefox: Before Firefox 46, a TypeError was thrown on redeclaration instead of a SyntaxError.Firefox for Android: Before Firefox for Android 14, const is implemented, but re-assignment is not failing.Firefox for Android: Before Firefox for Android 46, a TypeError was thrown on redeclaration instead of a SyntaxError.
javascript.statements.continue 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.debugger 📋Firefox11/9/2004 Chrome5/25/20102023
javascript.statements.do_while 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.empty 📋Firefox11/9/2004 Chrome9/15/20091771
javascript.statements.export 📋Chrome9/5/2017 Firefox5/9/2018246
Node.js: Modules must either have a filename ending in .mjs, or the nearest parent package.json file must contain "type": "module". See Node's ECMAScript Modules documentation for more details.
javascript.statements.export.default 📋Chrome9/5/2017 Firefox5/9/2018246
Node.js: Modules must either have a filename ending in .mjs, or the nearest parent package.json file must contain "type": "module". See Node's ECMAScript Modules documentation for more details.
javascript.statements.export.namespace 📋Chrome1/29/2019 Firefox8/25/2020574
Node.js: Modules must either have a filename ending in .mjs, or the nearest parent package.json file must contain "type": "module". See Node's ECMAScript Modules documentation for more details.
javascript.statements.for 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.for_await_of 📋Firefox11/14/2017 Chrome12/6/201722
javascript.statements.for_in 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.for_of 📋Firefox6/5/2012 Chrome10/7/2014854
Firefox: Before Firefox 51, using the for...of loop construct with the const keyword threw a SyntaxError ("missing = in const declaration").Firefox for Android: Before Firefox for Android 51, using the for...of loop construct with the const keyword threw a SyntaxError ("missing = in const declaration").
javascript.statements.for_of.async_iterators Firefox11/14/2017 Chrome12/6/201722
javascript.statements.for_of.closing_iterators Chrome5/25/2016 Firefox4/19/2017329
javascript.statements.function 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.function.trailing_comma_in_parameters Firefox3/7/2017 Chrome4/19/201743
javascript.statements.generator_function 📋Firefox12/10/2013 Chrome11/18/2014343
javascript.statements.generator_function.IteratorResult_object Firefox4/29/2014 Chrome3/2/2016673
javascript.statements.generator_function.not_constructable_with_new Firefox12/15/2015 Chrome4/13/2016120
javascript.statements.generator_function.trailing_comma_in_parameters Firefox3/7/2017 Chrome4/19/201743
javascript.statements.if_else 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.import 📋Chrome9/5/2017 Firefox5/9/2018246
Node.js: Modules must either have a filename ending in .mjs, or the nearest parent package.json file must contain "type": "module". See Node's ECMAScript Modules documentation for more details.Node.js: Modules must either have a filename ending in .mjs, or the nearest parent package.json file must contain "type": "module". See Node's ECMAScript Modules documentation for more details.
javascript.statements.import.worker_support Chrome2/4/2020 Firefox6/6/20231218
javascript.statements.label 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.let 📋Firefox1/26/2016 Chrome3/2/201636
Chrome: Strict mode is required.Chrome Android: Strict mode is required.Edge: In Edge 12 and 13, let within a for loop initializer does not create a separate variable for each loop iteration as defined by ES2015. Instead, it behaves as though the loop were wrapped in a scoping block with the let immediately before the loop.Firefox: Before Firefox 44, let is only available to code blocks in HTML wrapped in a <script type="application/javascript;version=1.7"> block (or higher version) and has different semantics (e.g. no temporal dead zone).Firefox: Before Firefox 46, a TypeError is thrown on redeclaration instead of a SyntaxError.Firefox: Firefox 54 adds support of let in workers.Firefox for Android: Before Firefox for Android 44, let is only available to code blocks in HTML wrapped in a <script type="application/javascript;version=1.7"> block (or higher version) and has different semantics (e.g. no temporal dead zone).Firefox for Android: Before Firefox for Android 46, a TypeError is thrown on redeclaration instead of a SyntaxError.Firefox for Android: Firefox for Android 54 adds support of let in workers.Internet Explorer: In Internet Explorer, let within a for loop initializer does not create a separate variable for each loop iteration as defined by ES2015. Instead, it behaves as though the loop were wrapped in a scoping block with the let immediately before the loop.Samsung Internet: Strict mode is required.WebView Android: Strict mode is required.
javascript.statements.return 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.switch 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.throw 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.try_catch 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.try_catch.optional_catch_binding Firefox1/23/2018 Chrome4/17/201884
javascript.statements.var 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.while 📋Firefox11/9/2004 Chrome12/11/20081493
javascript.statements.with 📋Firefox11/9/2004 Chrome12/11/20081493