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WPT

This page compares scores on the Web Platform Tests across web engines, using the latest master runs from wpt.fyi and Blitz's own test runner.

wpt / scroll-animations / css

Spec: Scroll-driven Animations ↗

Runs: Chrome 155.0.8041.0 (wpt@2c385f65e, 2026-09-04) | Firefox 157.0a1 (wpt@2c385f65e, 2026-09-04) | Safari 251 preview (wpt@a1e944e7a, 2026-09-04) | Ladybird 1.0-a7825 (wpt@9298d21d2, 2026-09-04) | Servo Servo 0.6 (wpt@7e3d005d7, 2026-09-03) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)

Sort areas: alphabetical | by subtest count

AreaChromeFirefoxSafariLadybirdServoBlitz
Total95.3%726/76297.1%740/76295.9%731/76270.1%534/76215.0%114/7620.0%0/762
printing100.0%4/475.0%3/40.0%0/40.0%0/40.0%0/40.0%0/4
TestChromeFirefoxSafariLadybirdServoBlitz
animation-duration-auto.tentative.html4/55/55/52/50/5NOT RUN
animation-events.htmlPASSPASSPASSFAILFAILNOT RUN
animation-fill-outside-range-test.htmlPASSPASSPASSFAILTIMEOUTNOT RUN
animation-inactive-outside-range-test.htmlPASSPASSFAILPASSTIMEOUTNOT RUN
animation-range-ignored.html2/22/22/20/20/2NOT RUN
animation-range-normal-matches-cover.htmlPASSPASSPASSFAILFAILNOT RUN
animation-range-scroll-timeline.html4/44/44/40/40/4NOT RUN
animation-range-visual-test.htmlPASSPASSPASSFAILTIMEOUTNOT RUN
animation-shorthand.html27/2727/2727/2721/2717/27NOT RUN
animation-timeline-computed.html44/4444/4444/4444/440/44NOT RUN
animation-timeline-deferred.html3/33/33/30/30/3NOT RUN
animation-timeline-ignored.tentative.html5/54/55/50/50/5NOT RUN
animation-timeline-in-keyframe.htmlPASSPASSPASSPASSFAILNOT RUN
animation-timeline-multiple.htmlPASSPASSPASSFAILFAILNOT RUN
animation-timeline-named-scroll-progress-timeline.tentative.html9/1212/129/120/120/12NOT RUN
animation-timeline-none.html1/22/21/21/20/2NOT RUN
animation-timeline-parsing.html69/6969/6969/6969/6920/69NOT RUN
animation-timeline-scroll-functional-notation.tentative.html7/77/77/75/70/7NOT RUN
animation-timeline-view-functional-notation.tentative.html18/1818/1818/180/180/18NOT RUN
chrome-40925697.htmlPASSPASSPASSFAILFAILNOT RUN
deferred-timeline-composited.htmlPASSPASSPASSFAILTIMEOUTNOT RUN
get-animations-inactive-timeline.htmlPASSPASSPASSFAILERRORNOT RUN
merge-timeline-offset-keyframes.html2/22/22/20/20/2NOT RUN
named-range-keyframes-with-document-timeline.tentative.htmlPASSPASSPASSPASSERRORNOT RUN
progress-based-animation-animation-longhand-properties.tentative.html12/1212/1212/1212/120/12NOT RUN
progress-based-animation-timeline.htmlPASSPASSPASSFAILFAILNOT RUN
pseudo-on-scroller-named-timeline.htmlPASSPASSPASSFAILFAILNOT RUN
pseudo-on-scroller.htmlPASSPASSPASSPASSFAILNOT RUN
scroll-animation-initial-offset.htmlPASSPASSPASSPASSTIMEOUTNOT RUN
scroll-timeline-anonymous-reuse.html8/88/88/88/80/8NOT RUN
scroll-timeline-anonymous-source-quirks-mode.html3/33/33/30/30/3NOT RUN
scroll-timeline-anonymous-source-scrollable-body-quirks-mode.html3/33/33/31/30/3NOT RUN
scroll-timeline-anonymous-source-scrollable-body.html3/33/33/33/30/3NOT RUN
scroll-timeline-anonymous-source.html3/33/33/33/30/3NOT RUN
scroll-timeline-axis-computed.html14/1414/1414/1414/140/14NOT RUN
scroll-timeline-axis-parsing.html18/1818/1818/1818/186/18NOT RUN
scroll-timeline-axis-writing-mode.html7/77/77/70/70/7NOT RUN
scroll-timeline-default-iframe.htmlPASSPASSPASSPASSTIMEOUTNOT RUN
scroll-timeline-default-quirks-mode.htmlPASSPASSPASSPASSTIMEOUTNOT RUN
scroll-timeline-default-writing-mode-rl.htmlPASSPASSPASSFAILTIMEOUTNOT RUN
scroll-timeline-default.htmlPASSPASSPASSPASSTIMEOUTNOT RUN
scroll-timeline-document-scroller-quirks.htmlPASSPASSPASSPASSERRORNOT RUN
scroll-timeline-dynamic.tentative.html10/1414/1412/140/140/14NOT RUN
scroll-timeline-frame-size-changed.htmlPASSPASSPASSPASSTIMEOUTNOT RUN
scroll-timeline-in-container-query.htmlFAILFAILPASSFAILERRORNOT RUN
scroll-timeline-inactive.html2/22/22/20/20/2NOT RUN
scroll-timeline-inline-orientation.htmlPASSPASSPASSPASSTIMEOUTNOT RUN
scroll-timeline-multi-pass.tentative.htmlFAILFAILFAILFAILERRORNOT RUN
scroll-timeline-name-computed.html13/1313/1313/1313/130/13NOT RUN
scroll-timeline-name-parsing.html20/2020/2020/2020/208/20NOT RUN
scroll-timeline-name-shadow.html2/44/42/41/40/4NOT RUN
scroll-timeline-nearest-dirty.htmlPASSPASSPASSPASSERRORNOT RUN
scroll-timeline-nearest-with-absolute-positioned-element.htmlPASSPASSPASSFAILERRORNOT RUN
scroll-timeline-on-pseudo-002.htmlPASSPASSFAILFAILFAILNOT RUN
scroll-timeline-on-pseudo-like-part.htmlPASSFAILFAILFAILFAILNOT RUN
scroll-timeline-on-pseudo.htmlPASSPASSPASSFAILFAILNOT RUN
scroll-timeline-paused-animations.html2/22/22/22/20/2NOT RUN
scroll-timeline-range-animation.html8/88/88/80/80/8NOT RUN
scroll-timeline-responsiveness-from-endpoint.htmlPASSPASSPASSFAILERRORNOT RUN
scroll-timeline-root-dirty.htmlPASSPASSPASSPASSERRORNOT RUN
scroll-timeline-sampling.htmlPASSPASSPASSFAILFAILNOT RUN
scroll-timeline-shorthand.html51/5151/5151/5151/5110/51NOT RUN
scroll-timeline-update-reversed-animation.htmlPASSPASSPASSFAILTIMEOUTNOT RUN
scroll-timeline-with-percent-delay.tentative.htmlPASSFAILFAILFAILFAILNOT RUN
siblings-with-anonymous-timelines.html2/22/22/21/20/2NOT RUN
timeline-names-ident-function.html0/120/1211/120/120/12NOT RUN
timeline-offset-in-keyframe-change-timeline.tentative.htmlPASSPASSPASSFAILFAILNOT RUN
timeline-offset-keyframes-hidden-subject.htmlPASSPASSPASSFAILFAILNOT RUN
timeline-offset-keyframes-with-document-timeline.htmlPASSPASSPASSFAILFAILNOT RUN
timeline-offset-keyframes-with-scroll-timeline.htmlPASSFAILPASSFAILFAILNOT RUN
timeline-offset-keyframes-zero-length-attachment-range.html2/21/21/20/20/2NOT RUN
timeline-range-name-offset-in-keyframes.tentative.htmlPASSPASSPASSFAILERRORNOT RUN
timeline-scope-all.html3/33/31/30/30/3NOT RUN
timeline-scope-computed.html12/1212/1212/1212/120/12NOT RUN
timeline-scope-parsing.html25/2525/2525/2525/2513/25NOT RUN
timeline-scope.html7/1212/126/121/121/12NOT RUN
view-timeline-animation-range-update.tentative.htmlPASSPASSPASSFAILERRORNOT RUN
view-timeline-animation.html0/33/33/30/30/3NOT RUN
view-timeline-axis-computed.html14/1414/1414/1414/140/14NOT RUN
view-timeline-axis-parsing.html18/1818/1818/1818/186/18NOT RUN
view-timeline-dynamic.html4/44/44/40/40/4NOT RUN
view-timeline-inset-animation.html25/2525/2525/250/250/25NOT RUN
view-timeline-inset-computed.html17/1717/1717/1717/170/17NOT RUN
view-timeline-inset-parsing.html26/2626/2626/2626/2610/26NOT RUN
view-timeline-keyframe-boundary-interpolation.htmlPASSPASSPASSFAILFAILNOT RUN
view-timeline-lookup.html7/77/77/71/70/7NOT RUN
view-timeline-name-computed.html13/1313/1313/1313/130/13NOT RUN
view-timeline-name-parsing.html20/2020/2020/2020/208/20NOT RUN
view-timeline-name-shadow.html2/44/42/41/40/4NOT RUN
view-timeline-paused-animations.htmlPASSPASSPASSFAILERRORNOT RUN
view-timeline-pseudo-on-scroller-002.htmlPASSPASSPASSFAILFAILNOT RUN
view-timeline-pseudo-on-scroller.htmlFAILPASSPASSFAILFAILNOT RUN
view-timeline-range-animation.html17/1717/1717/170/170/17NOT RUN
view-timeline-range-update-reversed-animation.htmlPASSPASSPASSFAILTIMEOUTNOT RUN
view-timeline-range-update.htmlPASSPASSPASSFAILTIMEOUTNOT RUN
view-timeline-shorthand.html84/8484/8484/8484/8415/84NOT RUN
view-timeline-subject-bounds-update.htmlPASSPASSPASSFAILTIMEOUTNOT RUN
view-timeline-subject-in-shadow-root-with-timeline-scope.htmlPASSPASSPASSFAILFAILNOT RUN
view-timeline-unresolved-current-time-at-effect-end.htmlPASSFAILFAILFAILFAILNOT RUN
view-timeline-used-values.html2/22/22/20/20/2NOT RUN
view-timeline-with-delay-and-range.tentative.htmlPASSFAILFAILFAILFAILNOT RUN
view-timeline-with-transform-on-subject.htmlPASSPASSPASSFAILFAILNOT RUN