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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-sizing / stretch

AreaInterop ScoreTestsTest %SubtestsSubtest %
Total34.20%(15/58)25.86%(67/164)40.85%
TestSubtestsSubtest %Status
abspos-1.html(0/1)0.00%FAIL
abspos-2.html(0/1)0.00%FAIL
aspect-ratio-1.html(3/4)75.00%FAIL
aspect-ratio-2.html(2/18)11.11%FAIL
auto-margins-1.html(1/2)50.00%FAIL
auto-margins-2.html(6/6)100.00%PASS
bfc-next-to-float-1.html(1/1)100.00%PASS
bfc-next-to-float-2.html(0/1)0.00%FAIL
block-height-001.html(9/18)50.00%FAIL
block-height-002.html(2/4)50.00%FAIL
block-height-003.html(0/1)0.00%FAIL
block-height-004.html(0/8)0.00%FAIL
block-height-005.html(0/4)0.00%FAIL
block-height-006.html(0/1)0.00%FAIL
block-height-007.html(10/20)50.00%FAIL
block-height-009.html(0/1)0.00%FAIL
block-height-010.html(0/1)0.00%FAIL
cache-miss-001.html(0/1)0.00%FAIL
cache-miss-002.html(0/1)0.00%FAIL
content-contribution-001.html(2/5)40.00%FAIL
fixed-table-1.html(1/1)100.00%PASS
flex-basis-1.html(1/5)20.00%FAIL
flex-item-height-001.html(0/2)0.00%FAIL
flex-item-height-002.html(0/1)0.00%FAIL
flex-item-height-003.html(0/1)0.00%FAIL
flex-line-001.html(4/4)100.00%PASS
flex-line-002.html(4/4)100.00%PASS
flex-line-003.html(1/4)25.00%FAIL
flex-line-004.html(3/4)75.00%FAIL
flex-line-005.html(1/1)100.00%PASS
flex-stretch-min-max-cross-001.html(0/1)0.00%FAIL
flexbox-auto-minimum-001.html(0/1)0.00%FAIL
flexbox-auto-minimum-002.html(0/1)0.00%FAIL
flexbox-flex-base-size-001.html(0/1)0.00%FAIL
flexbox-flex-base-size-002.html(0/1)0.00%FAIL
flexbox-stretch-minimum-001.html(1/1)100.00%PASS
flexbox-stretch-minimum-002.html(1/1)100.00%PASS
grid-item-height-001.html(2/2)100.00%PASS
indefinite-1.html(2/2)100.00%PASS
indefinite-2.html(1/1)100.00%PASS
indefinite-3.html(1/1)100.00%PASS
indefinite-4.html(0/1)0.00%FAIL
indefinite-5.html(2/2)100.00%PASS
indefinite-6.html(2/2)100.00%PASS
min-width-1.html(0/1)0.00%FAIL
positioned-non-replaced-1.html(0/1)0.00%FAIL
positioned-replaced-1.html(0/1)0.00%FAIL
positioned-replaced-2.html(0/1)0.00%FAIL
positioned-replaced-3.html(1/1)100.00%PASS
replaced-next-to-float-1.html(0/1)0.00%FAIL
replaced-next-to-float-2.html(0/1)0.00%FAIL
replaced-stretch-height-001.html(0/1)0.00%FAIL
stretch-anonymous-block-001.html(0/1)0.00%FAIL
stretch-float-with-sibling.html(0/1)0.00%FAIL
stretch-float.html(0/1)0.00%FAIL
stretch-quirk-001.html(0/1)0.00%FAIL
stretch-quirk-002.html(0/1)0.00%FAIL
stretch-table-001.html(3/7)42.86%FAIL