Not yet stable

For a given set of browsers, what APIs are not yet in all of them.

Example Comparisons
Browsers
Features

Summary

A count of the number of APIs are in Browser X but not in Browser Y.
Not in EdgeNot in Safari
In Edge 343
In Safari 91

Unstable APIs

Below is a list of features that are not in all of Edge and Safari

Raw Data

Quick Links:

CSS Data

API First Browser Date Days in Limbo Notes
css.at-rules.counter-style.speak-as πŸ“‹Edge5/27/20211943
css.at-rules.font-face.OpenType_CBDT_CBLC Edge1/15/20202441
css.at-rules.font-face.OpenType_COLRv1 Edge2/3/20221691
css.at-rules.font-face.OpenType_SVG Safari3/25/20192737
css.at-rules.font-face.SVG_fonts Safari3/18/20086761
css.at-rules.font-face.ascent-override πŸ“‹Edge11/19/20202132
css.at-rules.font-face.descent-override πŸ“‹Edge11/19/20202132
css.at-rules.font-face.font-feature-settings πŸ“‹Safari9/20/20163653
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 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 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.at-rules.font-face.line-gap-override πŸ“‹Edge11/19/20202132
css.at-rules.font-face.src.drop_invalid_item Edge12/5/20221386
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.import.supports πŸ“‹Edge2/23/2024941
css.at-rules.keyframes.named_range_keyframes πŸ“‹Edge7/21/20231158
css.at-rules.media.-webkit-animation Safari6/8/20096314
css.at-rules.media.-webkit-transform-2d Safari6/8/20096314
css.at-rules.media.-webkit-transition Safari6/8/20096314
css.at-rules.media.display-mode.picture-in-picture πŸ“‹Edge3/22/2024913
css.at-rules.media.inverted-colors πŸ“‹Safari3/21/20163836
css.at-rules.media.media_query_values Edge1/15/20202441
css.at-rules.media.prefers-color-scheme.respects-inherited-scheme Edge9/19/2024732
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-reduced-data πŸ“‹Edge8/27/20202216
css.at-rules.media.prefers-reduced-transparency πŸ“‹Edge10/13/20231074
css.at-rules.media.video-dynamic-range πŸ“‹Edge2/3/20221691
css.at-rules.page.bottom-center πŸ“‹Edge11/14/2024676
css.at-rules.page.bottom-left πŸ“‹Edge11/14/2024676
css.at-rules.page.bottom-left-corner πŸ“‹Edge11/14/2024676
css.at-rules.page.bottom-right πŸ“‹Edge11/14/2024676
css.at-rules.page.bottom-right-corner πŸ“‹Edge11/14/2024676
css.at-rules.page.left-bottom πŸ“‹Edge11/14/2024676
css.at-rules.page.left-middle πŸ“‹Edge11/14/2024676
css.at-rules.page.left-top πŸ“‹Edge11/14/2024676
css.at-rules.page.page-orientation πŸ“‹Edge8/27/20202216
css.at-rules.page.right-bottom πŸ“‹Edge11/14/2024676
css.at-rules.page.right-middle πŸ“‹Edge11/14/2024676
css.at-rules.page.right-top πŸ“‹Edge11/14/2024676
css.at-rules.page.top-center πŸ“‹Edge11/14/2024676
css.at-rules.page.top-left πŸ“‹Edge11/14/2024676
css.at-rules.page.top-left-corner πŸ“‹Edge11/14/2024676
css.at-rules.page.top-right πŸ“‹Edge11/14/2024676
css.at-rules.page.top-right-corner πŸ“‹Edge11/14/2024676
css.at-rules.position-try πŸ“‹Edge5/17/2024857
css.properties.-webkit-app-region Edge1/15/20202441
css.properties.-webkit-column-axis Safari7/25/20125171
css.properties.-webkit-column-progression Safari10/22/20134717
css.properties.-webkit-cursor-visibility Safari10/22/20134717
css.properties.-webkit-hyphenate-limit-after Safari7/20/20115542
css.properties.-webkit-hyphenate-limit-before Safari7/20/20115542
css.properties.-webkit-hyphenate-limit-lines Safari7/25/20125171
css.properties.-webkit-line-align Safari7/25/20125171
css.properties.-webkit-line-box-contain Safari7/20/20115542
css.properties.-webkit-line-grid Safari7/25/20125171
css.properties.-webkit-line-snap Safari7/25/20125171
css.properties.-webkit-mask-source-type Safari10/22/20134717
css.properties.-webkit-nbsp-mode Safari6/8/20096314
css.properties.-webkit-tap-highlight-color Edge7/29/20154072
css.properties.-webkit-text-decorations-in-effect Edge1/15/20202441
css.properties.-webkit-text-zoom Safari9/20/20163653
css.properties.align-content.flex_context.last_baseline Safari9/19/20173289
Safari: This value is recognized, but has no effect. See bug 235005.Safari on iOS: This value is recognized, but has no effect. See bug 235005.WebView on iOS: This value is recognized, but has no effect. See bug 235005.
css.properties.align-items.anchor-center πŸ“‹Edge5/17/2024857
css.properties.align-self.anchor-center πŸ“‹Edge5/17/2024857
css.properties.align-self.position_absolute_context πŸ“‹Edge2/23/2024941
css.properties.anchor-name πŸ“‹Edge5/17/2024857
css.properties.anchor-name.none πŸ“‹Edge5/17/2024857
css.properties.anchor-scope πŸ“‹Edge11/14/2024676
css.properties.anchor-scope.all πŸ“‹Edge11/14/2024676
css.properties.anchor-scope.none πŸ“‹Edge11/14/2024676
css.properties.animation.animation-timeline_included Edge7/21/20231158
Chrome: Support is currently reset-only. Including animation resets a previously-declared animation-timeline value to auto, but animation-timeline cannot be set via animation.Chrome Android: Support is currently reset-only. Including animation resets a previously-declared animation-timeline value to auto, but animation-timeline cannot be set via animation.Edge: Support is currently reset-only. Including animation resets a previously-declared animation-timeline value to auto, but animation-timeline cannot be set via animation.Opera: Support is currently reset-only. Including animation resets a previously-declared animation-timeline value to auto, but animation-timeline cannot be set via animation.Opera Android: Support is currently reset-only. Including animation resets a previously-declared animation-timeline value to auto, but animation-timeline cannot be set via animation.Samsung Internet: Support is currently reset-only. Including animation resets a previously-declared animation-timeline value to auto, but animation-timeline cannot be set via animation.WebView Android: Support is currently reset-only. Including animation resets a previously-declared animation-timeline value to auto, but animation-timeline cannot be set via animation.
css.properties.animation-duration.auto πŸ“‹Edge7/21/20231158
Firefox: Firefox does not currently support the auto value and only accepts values in seconds or milliseconds. It's recommended that 1ms is used until auto is supported.Firefox for Android: Firefox for Android does not currently support the auto value and only accepts values in seconds or milliseconds. It's recommended that 1ms is used until auto is supported.
css.properties.animation-range πŸ“‹Edge7/21/20231158
css.properties.animation-range-end πŸ“‹Edge7/21/20231158
css.properties.animation-range-end.normal πŸ“‹Edge7/21/20231158
css.properties.animation-range-start πŸ“‹Edge7/21/20231158
css.properties.animation-range-start.normal πŸ“‹Edge7/21/20231158
css.properties.animation-timeline πŸ“‹Edge7/21/20231158
css.properties.animation-timeline.scroll πŸ“‹Edge7/21/20231158
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 πŸ“‹Edge7/21/20231158
css.properties.background-clip.border-area πŸ“‹Safari12/11/2024649
css.properties.background-position-x.side-relative_values Safari3/14/20221652
css.properties.background-position-y.side-relative_values Safari3/14/20221652
css.properties.baseline-source πŸ“‹Edge3/13/20231288
css.properties.baseline-source.auto πŸ“‹Edge3/13/20231288
css.properties.baseline-source.first πŸ“‹Edge3/13/20231288
css.properties.baseline-source.last πŸ“‹Edge3/13/20231288
css.properties.block-size.anchor-size πŸ“‹Edge5/17/2024857
css.properties.bottom.anchor πŸ“‹Edge5/17/2024857
css.properties.bottom.anchor-size πŸ“‹Edge1/17/2025612
css.properties.box-flex-group Safari10/26/20076905
css.properties.box-lines Safari10/26/20076905
css.properties.break-after.multicol_context πŸ“‹Edge7/29/20154072
Firefox: Only supported in print mode. See bug 1675322.Firefox for Android: Only supported in print mode. See bug 1675322.
css.properties.break-after.multicol_context.avoid Edge5/31/20221574
css.properties.break-after.multicol_context.avoid-column Edge5/31/20221574
css.properties.break-after.multicol_context.column Edge7/29/20154072
css.properties.break-before.multicol_context πŸ“‹Edge7/29/20154072
Firefox: Only supported in print mode. See bug 1675322.Firefox for Android: Only supported in print mode. See bug 1675322.
css.properties.break-before.multicol_context.avoid Edge5/31/20221574
css.properties.break-before.multicol_context.avoid-column Edge5/31/20221574
css.properties.break-before.multicol_context.column Edge7/29/20154072
css.properties.break-inside.paged_context.avoid-page Edge7/29/20154072
css.properties.clip-path.is_animatable Edge1/15/20202441
css.properties.color-adjust πŸ“‹Safari3/14/20221652
css.properties.container-type.scroll-state πŸ“‹Edge2/6/2025592
css.properties.custom-property.env.titlebar-area-height πŸ“‹Edge9/2/20211845
Chrome: Before version 93, Linux is unsupported.Chrome Android: Before version 93, Linux is unsupported.Edge: Before version 93, Linux is unsupported.
css.properties.custom-property.env.titlebar-area-width πŸ“‹Edge9/2/20211845
Chrome: Before version 93, Linux is unsupported.Chrome Android: Before version 93, Linux is unsupported.Edge: Before version 93, Linux is unsupported.
css.properties.custom-property.env.titlebar-area-x πŸ“‹Edge9/2/20211845
Chrome: Before version 93, Linux is unsupported.Chrome Android: Before version 93, Linux is unsupported.Edge: Before version 93, Linux is unsupported.
css.properties.custom-property.env.titlebar-area-y πŸ“‹Edge9/2/20211845
Chrome: Before version 93, Linux is unsupported.Chrome Android: Before version 93, Linux is unsupported.Edge: Before version 93, Linux is unsupported.
css.properties.d πŸ“‹Edge2/7/20202418
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.display.contents.contents_unusual Edge1/15/20202441
css.properties.display.list-item.legend-support Edge1/15/20202441
css.properties.display.math Edge1/12/20231348
css.properties.display.none.option_is_hidden Edge1/15/20202441
css.properties.field-sizing πŸ“‹Edge3/22/2024913
css.properties.field-sizing.content πŸ“‹Edge3/22/2024913
css.properties.field-sizing.fixed πŸ“‹Edge3/22/2024913
css.properties.filter.svg_elements Edge3/4/20212027
css.properties.flex-grow.less_than_zero_animate Edge1/15/20202441
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.font-family.math Edge1/12/20231348
css.properties.font-family.ui-monospace Safari3/24/20202372
css.properties.font-family.ui-rounded Safari3/24/20202372
css.properties.font-family.ui-sans-serif Safari3/24/20202372
css.properties.font-family.ui-serif Safari3/24/20202372
css.properties.font-palette.animation_computed Edge1/25/2024970
css.properties.font-palette.palette-mix_function πŸ“‹Edge1/25/2024970
css.properties.font-size.math Edge1/12/20231348
css.properties.font-variant-emoji.emoji πŸ“‹Edge11/14/2024676
css.properties.font-variant-emoji.normal πŸ“‹Edge11/14/2024676
css.properties.font-variant-emoji.text πŸ“‹Edge11/14/2024676
css.properties.font-variant-emoji.unicode πŸ“‹Edge11/14/2024676
css.properties.font-variant-position πŸ“‹Safari3/21/20163836
Chrome: The property is recognized, but has no effect.Chrome Android: The property is recognized, but has no effect.Edge: The property is recognized, but has no effect.Quest Browser: The property is recognized, but has no effect.Opera: The property is recognized, but has no effect.Opera Android: The property is recognized, but has no effect.Samsung Internet: The property is recognized, but has no effect.WebView Android: The property is recognized, but has no effect.
css.properties.font-variant-position.normal πŸ“‹Safari3/24/20202372
Chrome: The property is recognized, but has no effect.Chrome Android: The property is recognized, but has no effect.Edge: The property is recognized, but has no effect.Quest Browser: The property is recognized, but has no effect.Opera: The property is recognized, but has no effect.Opera Android: The property is recognized, but has no effect.Samsung Internet: The property is recognized, but has no effect.WebView Android: The property is recognized, but has no effect.
css.properties.font-variant-position.sub πŸ“‹Safari3/24/20202372
Chrome: The property is recognized, but has no effect.Chrome Android: The property is recognized, but has no effect.Edge: The property is recognized, but has no effect.Quest Browser: The property is recognized, but has no effect.Opera: The property is recognized, but has no effect.Opera Android: The property is recognized, but has no effect.Samsung Internet: The property is recognized, but has no effect.WebView Android: The property is recognized, but has no effect.
css.properties.font-variant-position.super πŸ“‹Safari3/24/20202372
Chrome: The property is recognized, but has no effect.Chrome Android: The property is recognized, but has no effect.Edge: The property is recognized, but has no effect.Quest Browser: The property is recognized, but has no effect.Opera: The property is recognized, but has no effect.Opera Android: The property is recognized, but has no effect.Samsung Internet: The property is recognized, but has no effect.WebView Android: The property is recognized, but has no effect.
css.properties.forced-color-adjust πŸ“‹Edge1/15/20202441
css.properties.forced-color-adjust.auto πŸ“‹Edge1/15/20202441
css.properties.forced-color-adjust.none πŸ“‹Edge1/15/20202441
css.properties.forced-color-adjust.preserve-parent-color πŸ“‹Edge10/3/20221449
css.properties.glyph-orientation-vertical πŸ“‹Safari3/24/20202372
css.properties.hanging-punctuation πŸ“‹Safari9/20/20163653
Safari: The characters U+0027 and U+0022 are not supported by the first and last keywords.Safari on iOS: The characters U+0027 and U+0022 are not supported by the first and last keywords.WebView on iOS: The characters U+0027 and U+0022 are not supported by the first and last keywords.
css.properties.hanging-punctuation.allow-end πŸ“‹Safari3/24/20202372
css.properties.hanging-punctuation.first πŸ“‹Safari3/24/20202372
css.properties.hanging-punctuation.last πŸ“‹Safari3/24/20202372
css.properties.hanging-punctuation.none πŸ“‹Safari3/24/20202372
css.properties.height.anchor-size πŸ“‹Edge5/17/2024857
css.properties.hyphenate-limit-chars πŸ“‹Edge1/12/20231348
css.properties.hyphenate-limit-chars.auto πŸ“‹Edge1/12/20231348
css.properties.hyphens.language_afrikaans Edge4/6/20231264
css.properties.hyphens.language_albanian Edge4/6/20231264
css.properties.hyphens.language_amharic Edge4/6/20231264
css.properties.hyphens.language_armenian Edge11/19/20202132
css.properties.hyphens.language_assamese Edge11/19/20202132
css.properties.hyphens.language_basque Edge11/19/20202132
css.properties.hyphens.language_belarusian Edge11/19/20202132
css.properties.hyphens.language_bengali Edge11/19/20202132
css.properties.hyphens.language_bulgarian Edge11/19/20202132
css.properties.hyphens.language_catalan Safari7/20/20115542
css.properties.hyphens.language_cyrillic_mongolian Edge11/19/20202132
css.properties.hyphens.language_estonian Edge11/19/20202132
css.properties.hyphens.language_ethiopic_script_mul Edge4/6/20231264
css.properties.hyphens.language_ethiopic_script_und Edge11/19/20202132
css.properties.hyphens.language_finnish Safari3/21/20163836
css.properties.hyphens.language_galician Edge4/6/20231264
css.properties.hyphens.language_georgian Edge4/6/20231264
css.properties.hyphens.language_german_swiss_orthography Edge11/19/20202132
css.properties.hyphens.language_german_traditional_orthography Edge11/19/20202132
css.properties.hyphens.language_gujarati Edge11/19/20202132
css.properties.hyphens.language_hindi Edge11/19/20202132
css.properties.hyphens.language_irish Edge11/19/20202132
css.properties.hyphens.language_kannada Edge11/19/20202132
css.properties.hyphens.language_latin Edge11/19/20202132
css.properties.hyphens.language_latvian Edge4/6/20231264
css.properties.hyphens.language_lithuanian Edge4/6/20231264
css.properties.hyphens.language_malayalam Edge11/19/20202132
css.properties.hyphens.language_marathi Edge11/19/20202132
css.properties.hyphens.language_modern_greek Edge4/6/20231264
css.properties.hyphens.language_norwegian_nn Edge11/19/20202132
css.properties.hyphens.language_old_slavonic Edge11/19/20202132
css.properties.hyphens.language_oriya Edge11/19/20202132
css.properties.hyphens.language_polish Safari3/21/20163836
css.properties.hyphens.language_punjabi Edge11/19/20202132
css.properties.hyphens.language_slovak Edge4/6/20231264
css.properties.hyphens.language_slovenian Edge11/19/20202132
css.properties.hyphens.language_tamil Edge11/19/20202132
css.properties.hyphens.language_telugu Edge11/19/20202132
css.properties.hyphens.language_turkish Safari7/20/20115542
css.properties.hyphens.language_turkmen Edge11/19/20202132
css.properties.hyphens.language_welsh Edge11/19/20202132
css.properties.image-rendering.optimizeQuality Safari10/22/20134717
css.properties.image-rendering.optimizeSpeed Safari10/22/20134717
css.properties.inline-size.anchor-size πŸ“‹Edge5/17/2024857
css.properties.inset.anchor πŸ“‹Edge5/17/2024857
css.properties.inset.anchor-size πŸ“‹Edge1/17/2025612
css.properties.inset-block.anchor πŸ“‹Edge5/17/2024857
css.properties.inset-block.anchor-size πŸ“‹Edge1/17/2025612
css.properties.inset-block-end.anchor πŸ“‹Edge5/17/2024857
css.properties.inset-block-end.anchor-size πŸ“‹Edge1/17/2025612
css.properties.inset-block-start.anchor πŸ“‹Edge5/17/2024857
css.properties.inset-block-start.anchor-size πŸ“‹Edge1/17/2025612
css.properties.inset-inline.anchor πŸ“‹Edge5/17/2024857
css.properties.inset-inline.anchor-size πŸ“‹Edge1/17/2025612
css.properties.inset-inline-end.anchor πŸ“‹Edge5/17/2024857
css.properties.inset-inline-end.anchor-size πŸ“‹Edge1/17/2025612
css.properties.inset-inline-start.anchor πŸ“‹Edge5/17/2024857
css.properties.inset-inline-start.anchor-size πŸ“‹Edge1/17/2025612
css.properties.interpolate-size πŸ“‹Edge9/19/2024732
css.properties.interpolate-size.allow-keywords πŸ“‹Edge9/19/2024732
css.properties.interpolate-size.numeric-only πŸ“‹Edge9/19/2024732
css.properties.justify-items.anchor-center πŸ“‹Edge5/17/2024857
css.properties.justify-self.anchor-center πŸ“‹Edge5/17/2024857
css.properties.justify-self.position_absolute_context πŸ“‹Edge2/23/2024941
css.properties.left.anchor πŸ“‹Edge5/17/2024857
css.properties.left.anchor-size πŸ“‹Edge1/17/2025612
css.properties.line-clamp.none Safari12/11/2024649
css.properties.line-height-step πŸ“‹Edge1/15/20202441
css.properties.margin.anchor-size πŸ“‹Edge1/17/2025612
css.properties.margin-block.anchor-size πŸ“‹Edge1/17/2025612
css.properties.margin-block-end.anchor-size πŸ“‹Edge1/17/2025612
css.properties.margin-block-start.anchor-size πŸ“‹Edge1/17/2025612
css.properties.margin-bottom.anchor-size πŸ“‹Edge1/17/2025612
css.properties.margin-inline.anchor-size πŸ“‹Edge1/17/2025612
css.properties.margin-inline-end.anchor-size πŸ“‹Edge1/17/2025612
css.properties.margin-inline-start.anchor-size πŸ“‹Edge1/17/2025612
css.properties.margin-left.anchor-size πŸ“‹Edge1/17/2025612
css.properties.margin-right.anchor-size πŸ“‹Edge1/17/2025612
css.properties.margin-top.anchor-size πŸ“‹Edge1/17/2025612
css.properties.margin-trim πŸ“‹Safari3/27/20231274
css.properties.margin-trim.block πŸ“‹Safari3/27/20231274
css.properties.margin-trim.block-end πŸ“‹Safari3/27/20231274
css.properties.margin-trim.block-start πŸ“‹Safari3/27/20231274
css.properties.margin-trim.inline πŸ“‹Safari3/27/20231274
css.properties.margin-trim.inline-end πŸ“‹Safari3/27/20231274
css.properties.margin-trim.inline-start πŸ“‹Safari3/27/20231274
css.properties.margin-trim.none πŸ“‹Safari3/27/20231274
css.properties.mask-origin.fill-box Edge12/7/20231019
css.properties.mask-origin.stroke-box Edge12/7/20231019
css.properties.mask-origin.view-box Edge12/7/20231019
css.properties.math-depth πŸ“‹Edge1/12/20231348
css.properties.math-shift πŸ“‹Edge1/12/20231348
css.properties.max-block-size.anchor-size πŸ“‹Edge5/17/2024857
css.properties.max-height.anchor-size πŸ“‹Edge5/17/2024857
css.properties.max-height.stretch πŸ“‹Edge1/15/20202441
css.properties.max-inline-size.anchor-size πŸ“‹Edge5/17/2024857
css.properties.max-width.anchor-size πŸ“‹Edge5/17/2024857
css.properties.max-width.stretch πŸ“‹Edge1/15/20202441
css.properties.min-block-size.anchor-size πŸ“‹Edge5/17/2024857
css.properties.min-height.anchor-size πŸ“‹Edge5/17/2024857
css.properties.min-inline-size.anchor-size πŸ“‹Edge5/17/2024857
css.properties.min-width.anchor-size πŸ“‹Edge5/17/2024857
css.properties.min-width.stretch Edge1/15/20202441
css.properties.mix-blend-mode.plus-darker πŸ“‹Safari3/24/20202372
css.properties.mix-blend-mode.svg_elements Edge1/15/20202441
css.properties.object-view-box πŸ“‹Edge8/5/20221508
css.properties.object-view-box.none πŸ“‹Edge8/5/20221508
css.properties.offset-path.margin-box πŸ“‹Safari9/16/2024735
css.properties.overflow-anchor πŸ“‹Edge1/15/20202441
css.properties.overflow-anchor.auto πŸ“‹Edge1/15/20202441
css.properties.overflow-anchor.none πŸ“‹Edge1/15/20202441
css.properties.overflow-clip-margin πŸ“‹Edge4/15/20211985
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-clip-margin.border-box πŸ“‹Edge8/5/20221508
css.properties.overflow-clip-margin.content-box πŸ“‹Edge8/5/20221508
css.properties.overflow-clip-margin.padding-box πŸ“‹Edge8/5/20221508
css.properties.overlay πŸ“‹Edge9/15/20231102
css.properties.overlay.auto πŸ“‹Edge9/15/20231102
css.properties.overlay.none πŸ“‹Edge9/15/20231102
css.properties.page-break-after.avoid πŸ“‹Edge7/29/20154072
css.properties.page-break-before.avoid πŸ“‹Edge7/29/20154072
css.properties.place-items.anchor-center πŸ“‹Edge5/17/2024857
css.properties.place-self.anchor-center πŸ“‹Edge5/17/2024857
css.properties.place-self.position_absolute_context πŸ“‹Edge2/23/2024941
css.properties.position-anchor πŸ“‹Edge5/17/2024857
css.properties.position-anchor.auto πŸ“‹Edge5/17/2024857
Chrome: The generic auto value exists, but it does not yet have the effect described in the spec.Chrome Android: The generic auto value exists, but it does not yet have the effect described in the spec.Edge: The generic auto value exists, but it does not yet have the effect described in the spec.Opera: The generic auto value exists, but it does not yet have the effect described in the spec.Opera Android: The generic auto value exists, but it does not yet have the effect described in the spec.Samsung Internet: The generic auto value exists, but it does not yet have the effect described in the spec.WebView Android: The generic auto value exists, but it does not yet have the effect described in the spec.
css.properties.position-area πŸ“‹Edge9/19/2024732
css.properties.position-area.block-end πŸ“‹Edge9/19/2024732
css.properties.position-area.block-start πŸ“‹Edge9/19/2024732
css.properties.position-area.bottom πŸ“‹Edge9/19/2024732
css.properties.position-area.center πŸ“‹Edge9/19/2024732
css.properties.position-area.end πŸ“‹Edge9/19/2024732
css.properties.position-area.inline-end πŸ“‹Edge9/19/2024732
css.properties.position-area.inline-start πŸ“‹Edge9/19/2024732
css.properties.position-area.left πŸ“‹Edge9/19/2024732
css.properties.position-area.none πŸ“‹Edge9/19/2024732
css.properties.position-area.right πŸ“‹Edge9/19/2024732
css.properties.position-area.self-end πŸ“‹Edge9/19/2024732
css.properties.position-area.self-start πŸ“‹Edge9/19/2024732
css.properties.position-area.span-all πŸ“‹Edge9/19/2024732
css.properties.position-area.span-block-end πŸ“‹Edge9/19/2024732
css.properties.position-area.span-block-start πŸ“‹Edge9/19/2024732
css.properties.position-area.span-bottom πŸ“‹Edge9/19/2024732
css.properties.position-area.span-end πŸ“‹Edge9/19/2024732
css.properties.position-area.span-inline-end πŸ“‹Edge9/19/2024732
css.properties.position-area.span-inline-start πŸ“‹Edge9/19/2024732
css.properties.position-area.span-start πŸ“‹Edge9/19/2024732
css.properties.position-area.span-top πŸ“‹Edge9/19/2024732
css.properties.position-area.span-x-end πŸ“‹Edge9/19/2024732
css.properties.position-area.span-x-start πŸ“‹Edge9/19/2024732
css.properties.position-area.span-y-end πŸ“‹Edge9/19/2024732
css.properties.position-area.span-y-start πŸ“‹Edge9/19/2024732
css.properties.position-area.start πŸ“‹Edge9/19/2024732
css.properties.position-area.top πŸ“‹Edge9/19/2024732
css.properties.position-area.x-end πŸ“‹Edge9/19/2024732
css.properties.position-area.x-self-end πŸ“‹Edge9/19/2024732
css.properties.position-area.x-self-start πŸ“‹Edge9/19/2024732
css.properties.position-area.x-start πŸ“‹Edge9/19/2024732
css.properties.position-area.y-end πŸ“‹Edge9/19/2024732
css.properties.position-area.y-self-end πŸ“‹Edge9/19/2024732
css.properties.position-area.y-self-start πŸ“‹Edge9/19/2024732
css.properties.position-area.y-start πŸ“‹Edge9/19/2024732
css.properties.position-try πŸ“‹Edge5/17/2024857
css.properties.position-try-fallbacks πŸ“‹Edge8/22/2024760
css.properties.position-try-fallbacks.flip-block πŸ“‹Edge8/22/2024760
css.properties.position-try-fallbacks.flip-inline πŸ“‹Edge8/22/2024760
css.properties.position-try-fallbacks.flip-start πŸ“‹Edge8/22/2024760
css.properties.position-try-fallbacks.none πŸ“‹Edge8/22/2024760
css.properties.position-try-fallbacks.position-area πŸ“‹Edge8/22/2024760
Chrome: inset-area values had to be wrapped inside an inset-area() function.Chrome Android: inset-area values had to be wrapped inside an inset-area() function.Edge: inset-area values had to be wrapped inside an inset-area() function.Opera: inset-area values had to be wrapped inside an inset-area() function.Opera Android: inset-area values had to be wrapped inside an inset-area() function.Samsung Internet: inset-area values had to be wrapped inside an inset-area() function.WebView Android: inset-area values had to be wrapped inside an inset-area() function.
css.properties.position-try-order πŸ“‹Edge5/17/2024857
css.properties.position-try-order.most-block-size πŸ“‹Edge5/17/2024857
css.properties.position-try-order.most-height πŸ“‹Edge5/17/2024857
css.properties.position-try-order.most-inline-size πŸ“‹Edge5/17/2024857
css.properties.position-try-order.most-width πŸ“‹Edge5/17/2024857
css.properties.position-try-order.normal πŸ“‹Edge5/17/2024857
css.properties.position-visibility πŸ“‹Edge5/17/2024857
css.properties.position-visibility.always πŸ“‹Edge5/17/2024857
css.properties.position-visibility.anchors-visible πŸ“‹Edge5/17/2024857
css.properties.position-visibility.no-overflow πŸ“‹Edge5/17/2024857
css.properties.print-color-adjust.economy πŸ“‹Safari7/25/20125171
css.properties.print-color-adjust.exact πŸ“‹Safari7/25/20125171
css.properties.reading-flow πŸ“‹Edge8/22/2024760
css.properties.right.anchor πŸ“‹Edge5/17/2024857
css.properties.right.anchor-size πŸ“‹Edge1/17/2025612
css.properties.ruby-overhang πŸ“‹Safari12/11/2024649
css.properties.ruby-overhang.auto πŸ“‹Safari12/11/2024649
css.properties.ruby-overhang.none πŸ“‹Safari12/11/2024649
css.properties.rx πŸ“‹Edge2/7/20202418
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 πŸ“‹Edge2/7/20202418
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.scroll-initial-target πŸ“‹Edge2/6/2025592
css.properties.scroll-initial-target.nearest πŸ“‹Edge2/6/2025592
css.properties.scroll-initial-target.none πŸ“‹Edge2/6/2025592
css.properties.scroll-timeline πŸ“‹Edge7/21/20231158
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 πŸ“‹Edge7/21/20231158
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-axis.block πŸ“‹Edge7/21/20231158
css.properties.scroll-timeline-axis.inline πŸ“‹Edge7/21/20231158
css.properties.scroll-timeline-axis.x πŸ“‹Edge7/21/20231158
css.properties.scroll-timeline-axis.y πŸ“‹Edge7/21/20231158
css.properties.scroll-timeline-name πŸ“‹Edge7/21/20231158
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 πŸ“‹Edge1/25/2024970
css.properties.scrollbar-color.auto πŸ“‹Edge1/25/2024970
css.properties.shape-image-threshold.percentages Edge1/15/20202441
css.properties.speak πŸ“‹Edge2/7/20202418
Chrome: The implementation is not compliant with the specification, see bug 40813740.Chrome Android: The implementation is not compliant with the specification, see bug 40813740.Edge: The implementation is not compliant with the specification, see bug 40813740.Quest Browser: The implementation is not compliant with the specification, see bug 40813740.Opera: The implementation is not compliant with the specification, see bug 40813740.Opera Android: The implementation is not compliant with the specification, see bug 40813740.Samsung Internet: The implementation is not compliant with the specification, see bug 40813740.WebView Android: The implementation is not compliant with the specification, see bug 40813740.
css.properties.speak-as πŸ“‹Safari4/12/20183084
css.properties.speak-as.digits πŸ“‹Safari4/12/20183084
css.properties.speak-as.literal-punctuation πŸ“‹Safari4/12/20183084
css.properties.speak-as.no-punctuation πŸ“‹Safari4/12/20183084
css.properties.speak-as.normal πŸ“‹Safari4/12/20183084
css.properties.speak-as.spell-out πŸ“‹Safari4/12/20183084
css.properties.stroke-color πŸ“‹Safari3/24/20202372
css.properties.text-decoration.includes_thickness Edge11/19/20202132
css.properties.text-decoration-line.grammar-error πŸ“‹Edge1/25/2024970
css.properties.text-decoration-line.spelling-error πŸ“‹Edge1/25/2024970
css.properties.text-decoration-skip πŸ“‹Safari3/25/20192737
Chrome: Only supports the deprecated ink value.Chrome Android: Only supports the deprecated ink value.Opera: Only supports the deprecated ink value.Opera Android: Only supports the deprecated ink value.Safari: Supports only none, auto, and objects values.Safari: Supports only none, auto, and objects values.Safari on iOS: Supports only none, auto, and objects values.Safari on iOS: Supports only none, auto, and objects values.Samsung Internet: Only supports the deprecated ink value.WebView Android: Only supports the deprecated ink value.WebView on iOS: Supports only none, auto, and objects values.WebView on iOS: Supports only none, auto, and objects values.
css.properties.text-decoration-skip.auto πŸ“‹Safari3/24/20202372
css.properties.text-decoration-skip.none πŸ“‹Safari3/24/20202372
css.properties.text-decoration-skip-ink.all πŸ“‹Safari3/14/20221652
css.properties.text-indent.each-line πŸ“‹Safari9/20/20211827
css.properties.text-indent.hanging πŸ“‹Safari9/20/20211827
css.properties.text-justify πŸ“‹Edge1/15/20202441
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-size-adjust πŸ“‹Edge1/15/20202441
css.properties.text-size-adjust.auto πŸ“‹Edge1/15/20202441
css.properties.text-size-adjust.none πŸ“‹Edge1/15/20202441
css.properties.text-size-adjust.percentages πŸ“‹Edge7/29/20154072
css.properties.text-spacing-trim πŸ“‹Edge3/22/2024913
css.properties.text-spacing-trim.normal πŸ“‹Edge3/22/2024913
css.properties.text-spacing-trim.space-all πŸ“‹Edge3/22/2024913
css.properties.text-spacing-trim.space-first πŸ“‹Edge3/22/2024913
css.properties.text-spacing-trim.trim-start πŸ“‹Edge3/22/2024913
css.properties.text-transform.full-size-kana πŸ“‹Safari9/18/20231099
css.properties.text-transform.full-width πŸ“‹Safari9/18/20231099
css.properties.text-transform.greek_accented_characters Edge1/15/20202441
css.properties.text-transform.math-auto πŸ“‹Edge1/12/20231348
css.properties.text-wrap.pretty πŸ“‹Edge9/15/20231102
css.properties.text-wrap-style.pretty πŸ“‹Edge10/17/2024704
css.properties.timeline-scope πŸ“‹Edge8/21/20231127
css.properties.timeline-scope.all πŸ“‹Edge8/21/20231127
css.properties.timeline-scope.none πŸ“‹Edge8/21/20231127
css.properties.top.anchor πŸ“‹Edge5/17/2024857
css.properties.top.anchor-size πŸ“‹Edge1/17/2025612
css.properties.touch-action.pan-down Edge1/15/20202441
css.properties.touch-action.pan-left Edge1/15/20202441
css.properties.touch-action.pan-right Edge1/15/20202441
css.properties.touch-action.pan-up Edge1/15/20202441
css.properties.view-timeline πŸ“‹Edge7/21/20231158
Firefox: Now supports the x and y values, and also the deprecated horizontal and vertical values.
css.properties.view-timeline-axis πŸ“‹Edge7/21/20231158
Firefox: Now supports the x and y values, and also the deprecated horizontal and vertical values.
css.properties.view-timeline-axis.block πŸ“‹Edge7/21/20231158
css.properties.view-timeline-axis.inline πŸ“‹Edge7/21/20231158
css.properties.view-timeline-axis.x πŸ“‹Edge7/21/20231158
css.properties.view-timeline-axis.y πŸ“‹Edge7/21/20231158
css.properties.view-timeline-inset πŸ“‹Edge7/21/20231158
css.properties.view-timeline-inset.auto πŸ“‹Edge7/21/20231158
css.properties.view-timeline-name πŸ“‹Edge7/21/20231158
css.properties.white-space.shorthand_values Edge6/2/20231207
Chrome: Only accepts values for white-space-collapse and text-wrap-mode, not white-space-trim.Chrome Android: Only accepts values for white-space-collapse and text-wrap-mode, not white-space-trim.Edge: Only accepts values for white-space-collapse and text-wrap-mode, not white-space-trim.Opera: Only accepts values for white-space-collapse and text-wrap-mode, not white-space-trim.Opera Android: Only accepts values for white-space-collapse and text-wrap-mode, not white-space-trim.Samsung Internet: Only accepts values for white-space-collapse and text-wrap-mode, not white-space-trim.WebView Android: Only accepts values for white-space-collapse and text-wrap-mode, not white-space-trim.
css.properties.width.anchor-size πŸ“‹Edge5/17/2024857
css.properties.word-break.auto-phrase πŸ“‹Edge11/2/20231054
Chrome: This value is only applicable if lang="ja" is specified. This value has no effect on other locales.Chrome Android: This value is only applicable if lang="ja" is specified. This value has no effect on other locales.Edge: This value is only applicable if lang="ja" is specified. This value has no effect on other locales.Opera: This value is only applicable if lang="ja" is specified. This value has no effect on other locales.Opera Android: This value is only applicable if lang="ja" is specified. This value has no effect on other locales.Samsung Internet: This value is only applicable if lang="ja" is specified. This value has no effect on other locales.WebView Android: This value is only applicable if lang="ja" is specified. This value has no effect on other locales.
css.properties.word-spacing.percentages Safari10/22/20134717
css.properties.writing-mode.sideways-lr Edge1/17/2025612
css.properties.writing-mode.sideways-rl Edge1/17/2025612
css.properties.zoom.reset Safari3/18/20086761
css.selectors.-webkit-slider-runnable-track Edge5/21/20202314
css.selectors.-webkit-slider-thumb Edge5/21/20202314
css.selectors.active-view-transition-type πŸ“‹Edge5/17/2024857
css.selectors.buffering πŸ“‹Safari3/14/20221652
css.selectors.details-content πŸ“‹Edge11/14/2024676
css.selectors.first-child.no_parent_required Edge1/15/20202441
css.selectors.host-context πŸ“‹Edge1/15/20202441
css.selectors.lang.argument_list Safari9/30/20154009
css.selectors.lang.wildcards Safari9/30/20154009
css.selectors.last-child.no_parent_required Edge1/15/20202441
css.selectors.marker.animation_and_transition_support Edge10/9/20202173
css.selectors.muted πŸ“‹Safari3/14/20221652
css.selectors.nth-child.no_parent_required Edge1/15/20202441
css.selectors.nth-last-child.no_parent_required Edge1/15/20202441
css.selectors.only-child.no_parent_required Edge1/15/20202441
css.selectors.open πŸ“‹Edge2/6/2025592
Chrome: The selector is recognized, but has no effect.Chrome Android: The selector is recognized, but has no effect.Edge: The selector is recognized, but has no effect.Opera: The selector is recognized, but has no effect.Opera Android: The selector is recognized, but has no effect.Samsung Internet: The selector is recognized, but has no effect.WebView Android: The selector is recognized, but has no effect.
css.selectors.paused πŸ“‹Safari3/14/20221652
css.selectors.playing πŸ“‹Safari3/14/20221652
css.selectors.seeking πŸ“‹Safari3/14/20221652
css.selectors.selection.text-decoration Edge9/1/20221481
css.selectors.stalled πŸ“‹Safari3/14/20221652
css.selectors.volume-locked πŸ“‹Safari3/14/20221652
css.selectors.xr-overlay πŸ“‹Edge5/21/20202314
css.types.abs πŸ“‹Safari3/14/20221652
css.types.anchor πŸ“‹Edge5/17/2024857
css.types.anchor-size πŸ“‹Edge5/17/2024857
css.types.anchor-size.inset_margin Edge1/17/2025612
css.types.attr.fallback Edge2/6/2025592
css.types.attr.type-or-unit Edge2/6/2025592
css.types.basic-shape.path.d πŸ“‹Edge1/15/20202441
css.types.calc-size πŸ“‹Edge9/19/2024732
css.types.image.paint πŸ“‹Edge1/15/20202441
css.types.sign πŸ“‹Safari3/14/20221652