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Status

This page documents the implementation status of various HTML and CSS features in Blitz.

CSS PropertiesHTML ElementsEventsWPT TestsWPT History

This page documents Blitz's scores on the "css" subsuite of the Web Platform Tests.

wpt / css / css-masking / animations

Score history
1 month3 months6 months1 year2 years4 yearsAll time
0%20%40%60%80%100%May 2025Jul 2025Sep 2025Nov 2025Jan 2026Mar 2026May 2026Jul 2026Sep 2026css/css-masking/animations

Data from commit:
ff623a8 Fix the position of collapsed table borders (#1005) (2026-10-01)

AreaInterop ScoreTestsTest %SubtestsSubtest %
Total41.91%(0/21)0.00%(2945/5610)52.50%
TestSubtestsSubtest %Status
clip-composition.html(33/72)45.83%FAIL
clip-interpolation.html(264/324)81.48%FAIL
clip-path-composition.html(65/140)46.43%FAIL
clip-path-geometry-box-interpolation.html(108/144)75.00%FAIL
clip-path-interpolation-001.html(292/414)70.53%FAIL
clip-path-interpolation-002.html(582/720)80.83%FAIL
clip-path-interpolation-shape-arc-direction-agnostic-radius.html(0/1)0.00%FAIL
clip-path-interpolation-shape-control-points.html(247/306)80.72%FAIL
clip-path-interpolation-shape.html(547/692)79.05%FAIL
clip-path-interpolation-xywh-rect.html(284/360)78.89%FAIL
mask-border-outset-composition.html(0/112)0.00%FAIL
mask-border-outset-interpolation.html(0/168)0.00%FAIL
mask-border-slice-composition.html(0/112)0.00%FAIL
mask-border-slice-interpolation-stability.html(0/1)0.00%FAIL
mask-border-slice-interpolation.html(0/434)0.00%FAIL
mask-border-source-interpolation.html(0/294)0.00%FAIL
mask-border-width-composition.html(0/112)0.00%FAIL
mask-border-width-interpolation.html(0/558)0.00%FAIL
mask-image-interpolation.html(341/408)83.58%FAIL
mask-no-interpolation.html(35/42)83.33%FAIL
mask-position-interpolation.html(147/196)75.00%FAIL