For a given set of browsers what APIs are still considred experimental, and how long have they been experimental?
Below is a list of features that are marked as "Experimental" in Chrome and Safari
| API | First Browser | Date | Last Browser | Date | Days in experimentation | Notes |
|---|---|---|---|---|---|---|
| css.at-rules.container.anchor_position_queries 📋 | Chrome | 12/2/2025 | 107 | |||
| css.at-rules.container.anchor_position_queries.fallback 📋 | Chrome | 12/2/2025 | 107 | |||
| css.at-rules.container.anchor_position_queries.fallback.any_value 📋 | Chrome | 12/2/2025 | 107 | |||
| css.at-rules.container.scroll-state_queries 📋 | Chrome | 2/4/2025 | 408 | |||
| css.at-rules.container.scroll-state_queries.scrollable 📋 | Chrome | 2/4/2025 | 408 | |||
| css.at-rules.container.scroll-state_queries.scrolled 📋 | Chrome | 1/13/2026 | 65 | |||
| css.at-rules.container.scroll-state_queries.snapped 📋 | Chrome | 2/4/2025 | 408 | |||
| css.at-rules.container.scroll-state_queries.stuck 📋 | Chrome | 2/4/2025 | 408 | |||
| css.at-rules.container.style_queries_for_custom_properties.range_syntax 📋 | Chrome | 10/28/2025 | 142 | |||
| css.at-rules.font-face.font-width 📋 | Safari | 3/31/2025 | 353 | |||
| css.at-rules.function 📋 | Chrome | 8/5/2025 | 226 | |||
| css.at-rules.function.result 📋 | Chrome | 8/5/2025 | 226 | |||
| css.at-rules.media.device-posture 📋 | Chrome | 1/14/2025 | 429 | |||
| css.at-rules.media.display-mode.picture-in-picture 📋 | Chrome | 3/19/2024 | 730 | |||
| css.at-rules.media.display-mode.window-controls-overlay 📋 | Chrome | 9/2/2022 | 1294 | |||
| css.at-rules.media.horizontal-viewport-segments 📋 | Chrome | 6/24/2025 | 268 | |||
| css.at-rules.media.prefers-reduced-data 📋 | Chrome | 8/25/2020 | 2032 | |||
| css.at-rules.media.prefers-reduced-transparency 📋 | Chrome | 10/10/2023 | 891 | |||
| css.at-rules.media.vertical-viewport-segments 📋 | Chrome | 6/24/2025 | 268 | |||
| css.at-rules.page.bottom-center 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.bottom-left 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.bottom-left-corner 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.bottom-right 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.bottom-right-corner 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.left-bottom 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.left-middle 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.left-top 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.right-bottom 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.right-middle 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.right-top 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.top-center 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.top-left 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.top-left-corner 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.top-right 📋 | Chrome | 11/12/2024 | 492 | |||
| css.at-rules.page.top-right-corner 📋 | Chrome | 11/12/2024 | 492 | |||
| css.properties.-webkit-app-region | Chrome | 1/10/2013 | 4816 | |||
| css.properties.-webkit-column-axis | Safari | 7/25/2012 | 4985 | |||
| css.properties.-webkit-column-progression | Safari | 10/22/2013 | 4531 | |||
| css.properties.-webkit-cursor-visibility | Safari | 10/22/2013 | 4531 | |||
| css.properties.-webkit-hyphenate-limit-after | Safari | 7/20/2011 | 5356 | |||
| css.properties.-webkit-hyphenate-limit-before | Safari | 7/20/2011 | 5356 | |||
| css.properties.-webkit-hyphenate-limit-lines | Safari | 7/25/2012 | 4985 | |||
| css.properties.-webkit-line-align | Safari | 7/25/2012 | 4985 | |||
| css.properties.-webkit-line-box-contain | Safari | 7/20/2011 | 5356 | |||
| css.properties.-webkit-line-grid | Safari | 7/25/2012 | 4985 | |||
| css.properties.-webkit-line-snap | Safari | 7/25/2012 | 4985 | |||
| css.properties.-webkit-mask-source-type | Safari | 10/22/2013 | 4531 | |||
| css.properties.-webkit-nbsp-mode | Safari | 6/8/2009 | 6128 | |||
| css.properties.-webkit-text-zoom | Safari | 9/20/2016 | 3467 | |||
| css.properties.animation-trigger 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.animation-trigger.none 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.appearance.base-select 📋 | Chrome | 4/1/2025 | 352 | |||
| css.properties.background.x-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.background.x-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.background.y-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.background.y-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.background-position.x-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.background-position.x-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.background-position.y-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.background-position.y-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.background-position-x.x-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.background-position-x.x-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.background-position-y.y-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.background-position-y.y-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.block-size.stretch 📋 | Chrome | 6/24/2025 | 268 | |||
| css.properties.caret-animation 📋 | Chrome | 9/2/2025 | 198 | |||
| css.properties.caret-animation.auto 📋 | Chrome | 9/2/2025 | 198 | |||
| css.properties.caret-animation.manual 📋 | Chrome | 9/2/2025 | 198 | |||
| css.properties.caret-shape 📋 | Chrome | 1/13/2026 | 65 | |||
| css.properties.caret-shape.auto 📋 | Chrome | 1/13/2026 | 65 | |||
| css.properties.caret-shape.bar 📋 | Chrome | 1/13/2026 | 65 | |||
| css.properties.caret-shape.block 📋 | Chrome | 1/13/2026 | 65 | |||
| css.properties.caret-shape.underscore 📋 | Chrome | 1/13/2026 | 65 | |||
| css.properties.column-height 📋 | Chrome | 2/10/2026 | 37 | |||
| css.properties.column-height.auto 📋 | Chrome | 2/10/2026 | 37 | |||
| css.properties.column-wrap 📋 | Chrome | 2/10/2026 | 37 | |||
| css.properties.column-wrap.auto 📋 | Chrome | 2/10/2026 | 37 | |||
| css.properties.column-wrap.nowrap 📋 | Chrome | 2/10/2026 | 37 | |||
| css.properties.column-wrap.wrap 📋 | Chrome | 2/10/2026 | 37 | |||
| css.properties.columns.column-height 📋 | Chrome | 2/10/2026 | 37 | |||
| css.properties.container-type.anchored 📋 | Chrome | 12/2/2025 | 107 | |||
| css.properties.container-type.scroll-state 📋 | Chrome | 2/4/2025 | 408 | |||
| css.properties.corner-block-end-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-block-end-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-block-end-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-block-end-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-block-end-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-block-end-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-block-end-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-block-start-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-block-start-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-block-start-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-block-start-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-block-start-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-block-start-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-block-start-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-left-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-left-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-left-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-left-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-left-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-left-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-left-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-right-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-right-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-right-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-right-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-right-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-right-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-right-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-bottom-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-end-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-end-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-end-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-end-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-end-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-end-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-end-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-start-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-start-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-start-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-start-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-start-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-start-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-end-start-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-end-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-end-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-end-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-end-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-end-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-end-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-end-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-start-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-start-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-start-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-start-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-start-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-start-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-inline-start-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-left-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-left-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-left-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-left-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-left-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-left-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-left-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-right-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-right-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-right-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-right-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-right-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-right-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-right-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-end-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-end-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-end-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-end-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-end-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-end-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-end-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-start-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-start-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-start-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-start-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-start-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-start-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-start-start-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-left-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-left-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-left-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-left-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-left-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-left-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-left-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-right-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-right-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-right-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-right-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-right-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-right-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-right-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-shape 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-shape.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-shape.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-shape.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-shape.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-shape.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.corner-top-shape.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.properties.display.math | Chrome | 1/10/2023 | 1164 | |||
| css.properties.dynamic-range-limit.constrained 📋 | Chrome | 4/29/2025 | 324 | |||
| css.properties.dynamic-range-limit.dynamic-range-limit-mix_values 📋 | Chrome | 4/29/2025 | 324 | |||
| css.properties.flex.stretch 📋 | Chrome | 6/24/2025 | 268 | |||
| css.properties.flex-basis.stretch 📋 | Chrome | 6/24/2025 | 268 | |||
| css.properties.font-palette.animation_computed | Chrome | 1/23/2024 | 786 | |||
| css.properties.font-palette.palette-mix_function 📋 | Chrome | 1/23/2024 | 786 | |||
| css.properties.font-width 📋 | Safari | 3/31/2025 | 353 | |||
| css.properties.font-width.condensed 📋 | Safari | 3/31/2025 | 353 | |||
| css.properties.font-width.expanded 📋 | Safari | 3/31/2025 | 353 | |||
| css.properties.font-width.extra-condensed 📋 | Safari | 3/31/2025 | 353 | |||
| css.properties.font-width.extra-expanded 📋 | Safari | 3/31/2025 | 353 | |||
| css.properties.font-width.normal 📋 | Safari | 3/31/2025 | 353 | |||
| css.properties.font-width.percentage 📋 | Safari | 3/31/2025 | 353 | |||
| css.properties.font-width.semi-condensed 📋 | Safari | 3/31/2025 | 353 | |||
| css.properties.font-width.semi-expanded 📋 | Safari | 3/31/2025 | 353 | |||
| css.properties.font-width.ultra-condensed 📋 | Safari | 3/31/2025 | 353 | |||
| css.properties.font-width.ultra-expanded 📋 | Safari | 3/31/2025 | 353 | |||
| css.properties.forced-color-adjust.preserve-parent-color 📋 | Chrome | 9/27/2022 | 1269 | |||
| css.properties.inline-size.stretch 📋 | Chrome | 6/24/2025 | 268 | |||
| css.properties.interactivity 📋 | Chrome | 4/1/2025 | 352 | |||
| css.properties.interactivity.auto 📋 | Chrome | 4/1/2025 | 352 | |||
| css.properties.interactivity.inert 📋 | Chrome | 4/1/2025 | 352 | |||
| css.properties.interest-delay 📋 | Chrome | 10/28/2025 | 142 | |||
| css.properties.interest-delay.normal 📋 | Chrome | 10/28/2025 | 142 | |||
| css.properties.interest-delay-end 📋 | Chrome | 10/28/2025 | 142 | |||
| css.properties.interest-delay-end.normal 📋 | Chrome | 10/28/2025 | 142 | |||
| css.properties.interest-delay-start 📋 | Chrome | 10/28/2025 | 142 | |||
| css.properties.interest-delay-start.normal 📋 | Chrome | 10/28/2025 | 142 | |||
| css.properties.interpolate-size 📋 | Chrome | 9/17/2024 | 548 | |||
| css.properties.interpolate-size.allow-keywords 📋 | Chrome | 9/17/2024 | 548 | |||
| css.properties.interpolate-size.numeric-only 📋 | Chrome | 9/17/2024 | 548 | |||
| css.properties.justify-items.block_context 📋 | Chrome | 10/15/2024 | 520 | |||
| css.properties.justify-self.block_context 📋 | Chrome | 10/15/2024 | 520 | |||
| css.properties.margin-trim 📋 | Safari | 3/27/2023 | 1088 | |||
| css.properties.margin-trim.block 📋 | Safari | 3/27/2023 | 1088 | |||
| css.properties.margin-trim.block-end 📋 | Safari | 3/27/2023 | 1088 | |||
| css.properties.margin-trim.block-start 📋 | Safari | 3/27/2023 | 1088 | |||
| css.properties.margin-trim.inline 📋 | Safari | 3/27/2023 | 1088 | |||
| css.properties.margin-trim.inline-end 📋 | Safari | 3/27/2023 | 1088 | |||
| css.properties.margin-trim.inline-start 📋 | Safari | 3/27/2023 | 1088 | |||
| css.properties.margin-trim.none 📋 | Safari | 3/27/2023 | 1088 | |||
| css.properties.mask.x-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.mask.x-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.mask.y-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.mask.y-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.mask-position.x-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.mask-position.x-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.mask-position.y-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.mask-position.y-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.max-block-size.stretch 📋 | Chrome | 6/24/2025 | 268 | |||
| css.properties.max-inline-size.stretch 📋 | Chrome | 6/24/2025 | 268 | |||
| css.properties.min-block-size.stretch 📋 | Chrome | 6/24/2025 | 268 | |||
| css.properties.min-inline-size.stretch 📋 | Chrome | 6/24/2025 | 268 | |||
| css.properties.mix-blend-mode.plus-darker 📋 | Safari | 9/30/2015 | 3823 | |||
| css.properties.object-position.x-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.object-position.x-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.object-position.y-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.object-position.y-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.object-view-box 📋 | Chrome | 8/2/2022 | 1325 | |||
| css.properties.object-view-box.none 📋 | Chrome | 8/2/2022 | 1325 | |||
| css.properties.offset.margin-box 📋 | Safari | 9/12/2022 | 1284 | |||
| css.properties.offset.x-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.offset.x-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.offset.y-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.offset.y-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.offset-anchor.x-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.offset-anchor.x-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.offset-anchor.y-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.offset-anchor.y-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.offset-path.margin-box 📋 | Safari | 9/16/2024 | 549 | |||
| css.properties.offset-position.x-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.offset-position.x-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.offset-position.y-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.offset-position.y-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.overlay 📋 | Chrome | 9/12/2023 | 919 | |||
| css.properties.overlay.auto 📋 | Chrome | 9/12/2023 | 919 | |||
| css.properties.overlay.none 📋 | Chrome | 9/12/2023 | 919 | |||
| css.properties.perspective-origin.x-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.perspective-origin.x-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.perspective-origin.y-end 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.perspective-origin.y-start 📋 | Safari | 9/15/2025 | 185 | |||
| css.properties.reading-flow 📋 | Chrome | 5/27/2025 | 296 | |||
| css.properties.reading-flow.flex-flow 📋 | Chrome | 5/27/2025 | 296 | |||
| css.properties.reading-flow.flex-visual 📋 | Chrome | 5/27/2025 | 296 | |||
| css.properties.reading-flow.grid-columns 📋 | Chrome | 5/27/2025 | 296 | |||
| css.properties.reading-flow.grid-order 📋 | Chrome | 5/27/2025 | 296 | |||
| css.properties.reading-flow.grid-rows 📋 | Chrome | 5/27/2025 | 296 | |||
| css.properties.reading-flow.normal 📋 | Chrome | 5/27/2025 | 296 | |||
| css.properties.reading-flow.source-order 📋 | Chrome | 5/27/2025 | 296 | |||
| css.properties.reading-order 📋 | Chrome | 5/27/2025 | 296 | |||
| css.properties.scroll-initial-target 📋 | Chrome | 2/4/2025 | 408 | |||
| css.properties.scroll-initial-target.nearest 📋 | Chrome | 2/4/2025 | 408 | |||
| css.properties.scroll-initial-target.none 📋 | Chrome | 2/4/2025 | 408 | |||
| css.properties.scroll-marker-group 📋 | Chrome | 4/1/2025 | 352 | |||
| css.properties.scroll-marker-group.after 📋 | Chrome | 4/1/2025 | 352 | |||
| css.properties.scroll-marker-group.before 📋 | Chrome | 4/1/2025 | 352 | |||
| css.properties.scroll-marker-group.none 📋 | Chrome | 4/1/2025 | 352 | |||
| css.properties.scroll-target-group 📋 | Chrome | 9/2/2025 | 198 | |||
| css.properties.scroll-target-group.auto 📋 | Chrome | 9/2/2025 | 198 | |||
| css.properties.scroll-target-group.none 📋 | Chrome | 9/2/2025 | 198 | |||
| css.properties.speak-as 📋 | Safari | 4/12/2018 | 2898 | |||
| css.properties.speak-as.digits 📋 | Safari | 4/12/2018 | 2898 | |||
| css.properties.speak-as.literal-punctuation 📋 | Safari | 4/12/2018 | 2898 | |||
| css.properties.speak-as.no-punctuation 📋 | Safari | 4/12/2018 | 2898 | |||
| css.properties.speak-as.normal 📋 | Safari | 4/12/2018 | 2898 | |||
| css.properties.speak-as.spell-out 📋 | Safari | 4/12/2018 | 2898 | |||
| css.properties.stroke-color 📋 | Safari | 4/12/2018 | 2898 | |||
| css.properties.stroke-color.currentColor 📋 | Safari | 4/12/2018 | 2898 | |||
| css.properties.stroke-color.transparent 📋 | Safari | 4/12/2018 | 2898 | |||
| css.properties.text-align-last.match-parent 📋 | Safari | 9/12/2022 | 1284 | |||
| css.properties.text-box.cap 📋 | Safari | 12/11/2024 | 463 | |||
| css.properties.text-box.ex 📋 | Safari | 12/11/2024 | 463 | |||
| css.properties.text-box.ideographic 📋 | Safari | 12/11/2024 | 463 | |||
| css.properties.text-box.ideographic-ink 📋 | Safari | 12/11/2024 | 463 | |||
| css.properties.text-box-edge.cap 📋 | Safari | 12/11/2024 | 463 | |||
| css.properties.text-box-edge.ex 📋 | Safari | 12/11/2024 | 463 | |||
| css.properties.text-box-edge.ideographic 📋 | Safari | 12/11/2024 | 463 | |||
| css.properties.text-box-edge.ideographic-ink 📋 | Safari | 12/11/2024 | 463 | |||
| css.properties.text-decoration-skip 📋 | Safari | 3/25/2019 | 2551 | Chrome: Only supported the deprecated ink value.Chrome Android: Only supported the deprecated ink value.Opera: Only supported the deprecated ink value.Opera Android: Only supported the deprecated ink value.Samsung Internet: Only supported the deprecated ink value.WebView Android: Only supported the deprecated ink value. | ||
| css.properties.text-decoration-skip.auto 📋 | Safari | 10/22/2013 | 4531 | |||
| css.properties.text-decoration-skip.none 📋 | Safari | 10/22/2013 | 4531 | |||
| css.properties.text-size-adjust 📋 | Chrome | 10/12/2016 | 3445 | |||
| css.properties.text-size-adjust.auto 📋 | Chrome | 10/12/2016 | 3445 | |||
| css.properties.text-size-adjust.none 📋 | Chrome | 10/12/2016 | 3445 | |||
| css.properties.text-size-adjust.percentages 📋 | Chrome | 10/12/2016 | 3445 | |||
| css.properties.text-spacing-trim 📋 | Chrome | 3/19/2024 | 730 | |||
| css.properties.text-spacing-trim.normal 📋 | Chrome | 3/19/2024 | 730 | |||
| css.properties.text-spacing-trim.space-all 📋 | Chrome | 3/19/2024 | 730 | |||
| css.properties.text-spacing-trim.space-first 📋 | Chrome | 3/19/2024 | 730 | |||
| css.properties.text-spacing-trim.trim-start 📋 | Chrome | 3/19/2024 | 730 | |||
| css.properties.timeline-trigger 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.timeline-trigger.auto 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.timeline-trigger.none 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.timeline-trigger.normal 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.timeline-trigger-name 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.timeline-trigger-name.none 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.timeline-trigger-source 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.timeline-trigger-source.auto 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.timeline-trigger-source.none 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.trigger-scope 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.trigger-scope.all 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.trigger-scope.none 📋 | Chrome | 3/10/2026 | 9 | |||
| css.properties.view-transition-group 📋 | Chrome | 9/2/2025 | 198 | |||
| css.properties.view-transition-group.contain | Chrome | 9/2/2025 | 198 | |||
| css.properties.view-transition-group.nearest | Chrome | 9/2/2025 | 198 | |||
| css.properties.view-transition-group.normal | Chrome | 9/2/2025 | 198 | |||
| css.properties.word-break.auto-phrase 📋 | Chrome | 10/31/2023 | 870 | 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.selectors.checkmark 📋 | Chrome | 2/4/2025 | 408 | |||
| css.selectors.column 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.column.nested_scroll-marker | Chrome | 4/1/2025 | 352 | |||
| css.selectors.interest-source 📋 | Chrome | 10/28/2025 | 142 | |||
| css.selectors.interest-target 📋 | Chrome | 10/28/2025 | 142 | |||
| css.selectors.picker 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.picker-icon 📋 | Chrome | 2/4/2025 | 408 | |||
| css.selectors.scroll-button 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.scroll-button.block-end 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.scroll-button.block-start 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.scroll-button.down 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.scroll-button.inline-end 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.scroll-button.inline-start 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.scroll-button.left 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.scroll-button.right 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.scroll-button.star 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.scroll-button.up 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.scroll-marker 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.scroll-marker-group 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.search-text 📋 | Chrome | 1/13/2026 | 65 | |||
| css.selectors.target-after 📋 | Chrome | 10/28/2025 | 142 | |||
| css.selectors.target-before 📋 | Chrome | 10/28/2025 | 142 | |||
| css.selectors.target-current 📋 | Chrome | 4/1/2025 | 352 | |||
| css.selectors.view-transition-group-children 📋 | Chrome | 9/2/2025 | 198 | |||
| css.selectors.xr-overlay 📋 | Chrome | 5/19/2020 | 2130 | |||
| css.types.attr.type_function 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.angle 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.color 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.custom-ident 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.ident 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.image 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.integer 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.length 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.length-percentage 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.number 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.percentage 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.resolution 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.string 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.time 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.transform-function 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.attr.type_function.url 📋 | Chrome | 2/4/2025 | 408 | |||
| css.types.calc-size 📋 | Chrome | 9/17/2024 | 548 | |||
| css.types.corner-shape-value 📋 | Chrome | 8/5/2025 | 226 | |||
| css.types.corner-shape-value.bevel 📋 | Chrome | 8/5/2025 | 226 | |||
| css.types.corner-shape-value.notch 📋 | Chrome | 8/5/2025 | 226 | |||
| css.types.corner-shape-value.round 📋 | Chrome | 8/5/2025 | 226 | |||
| css.types.corner-shape-value.scoop 📋 | Chrome | 8/5/2025 | 226 | |||
| css.types.corner-shape-value.square 📋 | Chrome | 8/5/2025 | 226 | |||
| css.types.corner-shape-value.squircle 📋 | Chrome | 8/5/2025 | 226 | |||
| css.types.corner-shape-value.superellipse 📋 | Chrome | 8/5/2025 | 226 | |||
| css.types.dashed-function 📋 | Chrome | 8/5/2025 | 226 | |||
| css.types.dynamic-range-limit-mix 📋 | Chrome | 4/29/2025 | 324 | |||
| css.types.env.keyboard-inset-bottom 📋 | Chrome | 9/21/2021 | 1640 | |||
| css.types.env.keyboard-inset-height 📋 | Chrome | 9/21/2021 | 1640 | |||
| css.types.env.keyboard-inset-left 📋 | Chrome | 9/21/2021 | 1640 | |||
| css.types.env.keyboard-inset-right 📋 | Chrome | 9/21/2021 | 1640 | |||
| css.types.env.keyboard-inset-top 📋 | Chrome | 9/21/2021 | 1640 | |||
| css.types.env.keyboard-inset-width 📋 | Chrome | 9/21/2021 | 1640 | |||
| css.types.env.viewport-segment-bottom 📋 | Chrome | 6/24/2025 | 268 | |||
| css.types.env.viewport-segment-height 📋 | Chrome | 6/24/2025 | 268 | |||
| css.types.env.viewport-segment-left 📋 | Chrome | 6/24/2025 | 268 | |||
| css.types.env.viewport-segment-right 📋 | Chrome | 6/24/2025 | 268 | |||
| css.types.env.viewport-segment-top 📋 | Chrome | 6/24/2025 | 268 | |||
| css.types.env.viewport-segment-width 📋 | Chrome | 6/24/2025 | 268 | |||
| css.types.if 📋 | Chrome | 5/27/2025 | 296 | |||
| css.types.if.style | Chrome | 5/27/2025 | 296 | |||
| css.types.if.style.range_syntax 📋 | Chrome | 10/28/2025 | 142 | |||
| css.types.random 📋 | Safari | 12/12/2025 | 97 | |||
| css.types.random.dashed-ident 📋 | Safari | 12/12/2025 | 97 | |||
| css.types.random.element-shared 📋 | Safari | 12/12/2025 | 97 | |||
| css.types.random.step 📋 | Safari | 12/12/2025 | 97 | |||
| css.types.superellipse 📋 | Chrome | 8/5/2025 | 226 | |||
| css.types.type 📋 | Chrome | 8/5/2025 | 226 |