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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:
1093b86 wpt: skip non-UTF-8 test files instead of crashing (#659) (2026-08-09)

wpt / css / CSS2 / visuren

AreaInterop ScoreTestsTest %SubtestsSubtest %
Total23.50%(8/34)23.53%(8/34)23.53%
TestSubtestsSubtest %Status
anonymous-boxes-001a.xht(0/1)0.00%FAIL
anonymous-boxes-001b.xht(0/1)0.00%FAIL
box-offsets-rel-pos-002.xht(1/1)100.00%PASS
clear-applies-to-016.xht(0/1)0.00%FAIL
clear-applies-to-017.xht(0/1)0.00%FAIL
emptyspan-1.html(0/1)0.00%FAIL
emptyspan-2.html(0/1)0.00%FAIL
emptyspan-3.html(0/1)0.00%FAIL
emptyspan-4.html(0/1)0.00%FAIL
fixed-pos-stacking-001.xht(1/1)100.00%PASS
float-inside-inline-between-blocks-1.html(0/1)0.00%FAIL
inherit-static-offset-001.xht(0/1)0.00%FAIL
inherit-static-offset-002.xht(0/1)0.00%FAIL
inherit-static-offset-003.xht(0/1)0.00%FAIL
inline-formatting-context-001.xht(1/1)100.00%PASS
left-offset-position-fixed-001.xht(1/1)100.00%PASS
percent-height-1.html(0/1)0.00%FAIL
position-absolute-008a.xht(1/1)100.00%PASS
position-absolute-percentage-inherit-001.xht(0/1)0.00%FAIL
remove-from-split-inline-1.html(0/1)0.00%FAIL
remove-from-split-inline-2.html(0/1)0.00%FAIL
remove-from-split-inline-3.html(0/1)0.00%FAIL
remove-from-split-inline-4.html(0/1)0.00%FAIL
remove-from-split-inline-5.html(0/1)0.00%FAIL
remove-from-split-inline-6.html(0/1)0.00%FAIL
remove-split-inline-1.html(0/1)0.00%FAIL
right-offset-position-fixed-001.xht(1/1)100.00%PASS
split-inner-inline-1.html(0/1)0.00%FAIL
split-inner-inline-2.html(0/1)0.00%FAIL
table-pseudo-in-part3-1.html(1/1)100.00%PASS
top-114.xht(0/1)0.00%FAIL
top-115.xht(1/1)100.00%PASS
whitespace-present-1a.html(0/1)0.00%FAIL
whitespace-present-1b.html(0/1)0.00%FAIL