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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-break / table

AreaInterop ScoreTestsTest %SubtestsSubtest %
Total20.70%(32/154)20.78%(32/154)20.78%
repeated-section23.60%(9/38)23.68%(9/38)23.68%
TestSubtestsSubtest %Status
border-collapse-001.html(0/1)0.00%FAIL
border-spacing-at-breaks.tentative.html(0/1)0.00%FAIL
bottom-padding-repeated-header-crash.html(1/1)100.00%PASS
break-after-table-cell-child.html(0/1)0.00%FAIL
break-after-table-cell.html(0/1)0.00%FAIL
break-avoidance-001.html(0/1)0.00%FAIL
break-avoidance-002.html(0/1)0.00%FAIL
break-avoidance-003.html(0/1)0.00%FAIL
break-avoidance-004.html(0/1)0.00%FAIL
break-avoidance-005.html(0/1)0.00%FAIL
break-avoidance-006.html(0/1)0.00%FAIL
break-avoidance-007.html(0/1)0.00%FAIL
break-avoidance-in-table-in-grid.html(0/1)0.00%FAIL
break-before-expansion-001.html(0/1)0.00%FAIL
break-before-expansion-002.html(0/1)0.00%FAIL
break-before-repeated-footer-instead-of-border-crash.html(1/1)100.00%PASS
break-before-second-row.html(1/1)100.00%PASS
break-before-table-cell-child.html(0/1)0.00%FAIL
break-before-table-cell.html(0/1)0.00%FAIL
break-inside-cell-000.html(0/1)0.00%FAIL
break-inside-cell-001.html(0/1)0.00%FAIL
caption-bottom-margin-at-boundary-crash.html(1/1)100.00%PASS
caption-margin-001.html(0/1)0.00%FAIL
caption-margin-002.html(1/1)100.00%PASS
caption-margin-003.html(0/1)0.00%FAIL
caption-margin-004.html(0/1)0.00%FAIL
caption-margin-005.html(1/1)100.00%PASS
cell-large-bottom-padding-crash.html(1/1)100.00%PASS
dynamic-caption-child-change-001.html(0/1)0.00%FAIL
final-border-spacing-at-fragmentainer-boundary.html(0/1)0.00%FAIL
inside-flex-001.html(0/1)0.00%FAIL
monolithic-overflow-001.tentative.html(1/1)100.00%PASS
monolithic-overflow-002.tentative.html(0/1)0.00%FAIL
monolithic-overflow-003.tentative.html(0/1)0.00%FAIL
monolithic-overflow-004.tentative.html(0/1)0.00%FAIL
monolithic-overflow-005.html(0/1)0.00%FAIL
monolithic-overflow-006.html(0/1)0.00%FAIL
oof-in-cell-with-alignment-001.html(0/1)0.00%FAIL
oof-in-cell-with-alignment-002.html(0/1)0.00%FAIL
oof-in-cell-with-alignment-003.html(0/1)0.00%FAIL
oof-in-cell-with-alignment-004.html(0/1)0.00%FAIL
overflow-scroll-row.html(0/1)0.00%FAIL
overflow-scroll-section.html(0/1)0.00%FAIL
section-with-overflow-000.html(0/1)0.00%FAIL
section-with-overflow-001.html(0/1)0.00%FAIL
section-with-overflow-002.html(0/1)0.00%FAIL
sections-and-captions-mixed-order.html(0/1)0.00%FAIL
specified-block-size-001.html(0/1)0.00%FAIL
specified-block-size-002.html(0/1)0.00%FAIL
specified-block-size-003.html(0/1)0.00%FAIL
specified-block-size-004.html(0/1)0.00%FAIL
specified-block-size-005.html(0/1)0.00%FAIL
specified-block-size-006.html(0/1)0.00%FAIL
specified-block-size-007.html(0/1)0.00%FAIL
specified-block-size-008.html(0/1)0.00%FAIL
table-border-000.html(0/1)0.00%FAIL
table-border-001.html(0/1)0.00%FAIL
table-border-002.html(0/1)0.00%FAIL
table-border-003.html(0/1)0.00%FAIL
table-border-004.html(0/1)0.00%FAIL
table-border-005.html(0/1)0.00%FAIL
table-border-006.html(0/1)0.00%FAIL
table-border-007.html(0/1)0.00%FAIL
table-border-008.html(0/1)0.00%FAIL
table-caption-and-cells-fixed-width.html(0/1)0.00%FAIL
table-caption-and-cells.html(0/1)0.00%FAIL
table-caption-with-block.html(0/1)0.00%FAIL
table-cell-border-001.html(0/1)0.00%FAIL
table-cell-border-002.html(0/1)0.00%FAIL
table-cell-expansion-001.html(0/1)0.00%FAIL
table-cell-expansion-002.html(0/1)0.00%FAIL
table-cell-expansion-003.html(0/1)0.00%FAIL
table-cell-expansion-004.html(0/1)0.00%FAIL
table-cell-expansion-005.html(0/1)0.00%FAIL
table-cell-expansion-006.html(1/1)100.00%PASS
table-cell-expansion-007.html(0/1)0.00%FAIL
table-cell-expansion-008.html(0/1)0.00%FAIL
table-cell-expansion-009.html(0/1)0.00%FAIL
table-cell-expansion-010.html(0/1)0.00%FAIL
table-col-paint-htb-ltr.html(0/1)0.00%FAIL
table-col-paint-vlr-rtl.html(0/1)0.00%FAIL
table-col-paint-vrl-rtl.html(0/1)0.00%FAIL
table-collapsed-borders-paint-at-boundary.tentative.html(0/1)0.00%FAIL
table-collapsed-borders-paint-htb-ltr.html(0/1)0.00%FAIL
table-collapsed-borders-paint-vlr-rtl.html(0/1)0.00%FAIL
table-collapsed-borders-paint-vrl-ltr.html(0/1)0.00%FAIL
table-fragmentation-001a-print.html(1/1)100.00%PASS
table-fragmentation-001b-print.html(1/1)100.00%PASS
table-fragmentation-001c-print.html(1/1)100.00%PASS
table-fragmentation-001d-print.html(1/1)100.00%PASS
table-fragmentation-002a-print.html(1/1)100.00%PASS
table-fragmentation-002b-print.html(1/1)100.00%PASS
table-fragmentation-002c-print.html(1/1)100.00%PASS
table-fragmentation-002d-print.html(1/1)100.00%PASS
table-fragmentation-003a-print.html(0/1)0.00%FAIL
table-fragmentation-003b-print.html(0/1)0.00%FAIL
table-fragmentation-003c-print.html(0/1)0.00%FAIL
table-fragmentation-003d-print.html(0/1)0.00%FAIL
table-grid-paint-htb-ltr.html(0/1)0.00%FAIL
table-grid-paint-vlr-rtl.html(0/1)0.00%FAIL
table-grid-paint-vrl-rtl.html(0/1)0.00%FAIL
table-in-abspos-multicol-with-nested-meter-crash.html(1/1)100.00%PASS
table-row-end-border-1-crash.html(1/1)100.00%PASS
table-row-end-border-2-crash.html(1/1)100.00%PASS
table-row-end-padding-crash.html(1/1)100.00%PASS
table-row-paint-htb-ltr.html(0/1)0.00%FAIL
table-row-paint-vlr-rtl.html(0/1)0.00%FAIL
table-row-paint-vrl-rtl.html(0/1)0.00%FAIL
table-rowspan-001.html(0/1)0.00%FAIL
table-section-paint-htb-ltr.html(0/1)0.00%FAIL
table-section-paint-vlr-rtl.html(0/1)0.00%FAIL
table-section-paint-vrl-rtl.html(0/1)0.00%FAIL
tall-bottom-aligned-cell-with-bottom-padding.html(0/1)0.00%FAIL
tall-padding-crash.html(1/1)100.00%PASS
truncated-border-spacing-at-fragmentainer-end.html(0/1)0.00%FAIL
zero-height-repeated-footer-crash.html(1/1)100.00%PASS