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Status

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

CSS PropertiesHTML ElementsEventsWPT Tests

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

Note: As it does not have a JavaScript engine, Blitz can only run about 20% of the total subtests. In the numbers below, tests that Blitz can't run are ignored and percentages are relative to the number of tests run.

Data from commit:
708eb61 WPT runner: support mismatch reftests and multiple rel=match links (#665) (2026-08-09)

wpt / css / css-view-transitions / scoped

AreaInterop ScoreTestsTest %SubtestsSubtest %
Total32.20%(10/31)32.26%(10/31)32.26%
TestSubtestsSubtest %Status
active-pseudo.html(0/1)0.00%FAIL
ancestor-display-change.html(0/1)0.00%FAIL
auto-nesting.html(0/1)0.00%FAIL
box-decoration-painting.html(1/1)100.00%PASS
centered-paint-offset.html(1/1)100.00%PASS
clip-on-target-in-callback-2.html(0/1)0.00%FAIL
clip-on-target-in-callback.html(1/1)100.00%PASS
clipper-non-containing-block.html(1/1)100.00%PASS
display-change-during-transition.html(0/1)0.00%FAIL
display-change.html(0/1)0.00%FAIL
fractional-border-shift.html(1/1)100.00%PASS
from-scale-zero.html(0/1)0.00%FAIL
implicit-contain.html(0/1)0.00%FAIL
ink-overflow-on-target.html(1/1)100.00%PASS
nested-scope.html(0/1)0.00%FAIL
new-content.html(0/1)0.00%FAIL
old-content.html(0/1)0.00%FAIL
overflow-excludes-pseudo.html(0/1)0.00%FAIL
paint-order.html(0/1)0.00%FAIL
pause-rendering-resize.html(1/1)100.00%PASS
pause-rendering.html(0/1)0.00%FAIL
rotation-on-scoped-element.html(0/1)0.00%FAIL
scope-containment-pseudo-border.html(0/1)0.00%FAIL
scope-during-transition-2.html(0/1)0.00%FAIL
scrolled-target-position-rtl.html(1/1)100.00%PASS
scrolled-target-position.html(1/1)100.00%PASS
scroller-with-child.html(0/1)0.00%FAIL
shadow-dom.html(0/1)0.00%FAIL
target-in-scrolled-container.html(1/1)100.00%PASS
to-scale-zero.html(0/1)0.00%FAIL
transform-clip.html(0/1)0.00%FAIL