WPT

This page compares scores on the Web Platform Tests across web engines, using the latest master runs from wpt.fyi and Blitz's own test runner.

wpt / css / css-grid

Spec: CSS Grid Layout ↗

Runs: Chrome 155.0.8039.0 (wpt@508cc6a62, 2026-09-03) | Firefox 157.0a1 (wpt@508cc6a62, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-56c61 (wpt@8fdda8ce4, 2026-09-03) | Servo Servo 0.6 (wpt@09159dcb3, 2026-09-02) | Blitz 188486089 (wpt@a95401e4e, 2026-09-02)

Sort areas: alphabetical | by subtest count

Area	Chrome	Firefox	Safari	Ladybird	Servo	Blitz
Total	NO DATA	NO DATA	92.3%15198/16464	69.9%11512/16464	50.5%8307/16464	48.9%8058/16464
abspos	NO DATA	NO DATA	99.2%3634/3662	92.1%3373/3662	12.7%464/3662	10.5%383/3662
alignment	NO DATA	NO DATA	94.0%1630/1734	31.5%547/1734	45.7%792/1734	46.3%802/1734
animation	NO DATA	NO DATA	100.0%2094/2094	100.0%2094/2094	74.9%1568/2094	68.9%1442/2094
grid-definition	NO DATA	NO DATA	94.5%1246/1318	73.0%962/1318	90.7%1195/1318	92.2%1215/1318
grid-items	NO DATA	NO DATA	99.6%1071/1075	62.2%669/1075	62.6%673/1075	63.9%687/1075
grid-lanes	NO DATA	NO DATA	75.7%2695/3559	43.1%1534/3559	35.8%1275/3559	35.8%1273/3559
grid-model	NO DATA	NO DATA	99.0%207/209	81.3%170/209	96.7%202/209	94.3%197/209
implicit-grids	NO DATA	NO DATA	100.0%3/3	66.7%2/3	100.0%3/3	100.0%3/3
layout-algorithm	NO DATA	NO DATA	98.4%554/563	56.0%315/563	52.0%293/563	48.8%275/563
parsing	NO DATA	NO DATA	91.4%1462/1599	87.8%1404/1599	91.4%1462/1599	89.9%1438/1599
placement	NO DATA	NO DATA	100.0%46/46	78.3%36/46	100.0%46/46	100.0%46/46
subgrid	NO DATA	NO DATA	90.6%328/362	51.7%187/362	29.0%105/362	20.2%73/362

Test	Chrome	Firefox	Safari	Ladybird	Servo	Blitz
anonymous-grid-items-001.html	PASS	PASS	PASS	PASS	PASS	PASS
anonymous-grid-items-002.html	PASS	PASS	FAIL	PASS	PASS	PASS
child-border-box-and-max-content-001.html	PASS	PASS	PASS	PASS	PASS	PASS
child-border-box-and-max-content-002.html	PASS	PASS	PASS	PASS	PASS	PASS
chrome-521184744-crash.html	PASS	PASS	PASS	PASS	PASS	PASS
chrome-bug-001.html	PASS	PASS	PASS	PASS	PASS	PASS
chrome-crash-001.html	PASS	PASS	PASS	PASS	PASS	PASS
computed-grid-column.html	PASS	PASS	PASS	PASS	PASS	PASS
dynamic-grid-with-auto-fill.html	PASS	PASS	PASS	PASS	PASS	PASS
dynamic-grid-within-flexbox.html	PASS	PASS	PASS	PASS	PASS	PASS
empty-grid-within-flexbox.html	PASS	PASS	PASS	PASS	PASS	PASS
fieldset-first-line-crash.html	PASS	PASS	PASS	PASS	PASS	PASS
firefox-bug-1881495.html	PASS	PASS	FAIL	PASS	FAIL	FAIL
firefox-bug-1958131-crash.html	PASS	PASS	PASS	PASS	PASS	PASS
firefox-bug-2063893-crash.html	PASS	PASS	PASS	ERROR	PASS	NOT RUN
grid-calc-margin.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-child-percent-basis-resize-1.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-container-as-flex-item-001.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-container-as-flex-item-002.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-container-as-flex-item-003.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-container-baseline-synthesized-001.html	PASS	PASS	PASS	FAIL	PASS	PASS
grid-container-baseline-synthesized-002.html	PASS	PASS	PASS	FAIL	PASS	PASS
grid-container-baseline-synthesized-003.html	PASS	PASS	PASS	FAIL	PASS	PASS
grid-container-baseline-synthesized-004.html	PASS	PASS	PASS	FAIL	PASS	PASS
grid-extrinsically-sized-mutations.html	8/8	8/8	8/8	8/8	8/8	8/8
grid-flex-spanning-items-001.html	PASS	PASS	PASS	PASS	FAIL	FAIL
grid-flexible-track-fractional-flex-factor.html	PASS	PASS	PASS	FAIL	PASS	PASS
grid-flexible-track-free-space-distribution.html	PASS	FAIL	PASS	FAIL	PASS	PASS
grid-formatting-context-fallback-crash.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-fragmentation-between-rows-001-print.tentative.html	PASS	PASS	NOT RUN	NOT RUN	NOT RUN	PASS
grid-important.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-in-table-cell-with-img.html	PASS	PASS	PASS	FAIL	PASS	PASS
grid-item-non-auto-height-stretch-001.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-item-non-auto-height-stretch-002.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-item-non-auto-height-stretch-003.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-item-non-auto-height-stretch-004.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-item-percentage-quirk-001.html	PASS	PASS	PASS	PASS	FAIL	FAIL
grid-item-percentage-quirk-002.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-layout-properties.html	140/140	137/140	137/140	136/140	136/140	137/140
grid-overflowing-item-below-container-is-painted.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-overflowing-item-content-is-painted.html	PASS	PASS	PASS	PASS	PASS	NOT RUN
grid-overflowing-item-in-both-axes-is-painted.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-overflowing-item-in-nonstart-cell-is-painted.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-overflowing-item-right-of-container-is-painted.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-overflowing-multiple-items-are-painted.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-relayout-with-nested-grid.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-stale-layoutbox-crash.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-table-cell-001-crash.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-tracks-fractional-fr.html	PASS	PASS	PASS	FAIL	PASS	PASS
grid-tracks-stretched-with-different-flex-factors-sum.html	2/2	2/2	2/2	1/2	2/2	2/2
grid-with-aspect-ratio-uses-content-box-height-for-track-sizing.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-with-content-dynamic-display-001.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-with-content-dynamic-display-002.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-with-dynamic-img.html	PASS	PASS	FAIL	PASS	PASS	FAIL
grid-with-orthogonal-child-within-flexbox.html	PASS	PASS	FAIL	FAIL	FAIL	FAIL
grid-within-flexbox-definite-change.html	PASS	PASS	PASS	PASS	PASS	PASS
grid-within-flexbox-indefinite.html	PASS	PASS	PASS	FAIL	PASS	PASS
img-src-changes.html	PASS	PASS	PASS	PASS	PASS	FAIL
inheritance.html	20/20	20/20	19/20	20/20	20/20	20/20
min-size-auto-overflow-clip.html	PASS	PASS	PASS	PASS	PASS	PASS
nested-grid-item-block-size-001.html	PASS	PASS	PASS	PASS	PASS	FAIL
relative-grandchild.html	PASS	PASS	PASS	PASS	PASS	PASS
replaced-element-percentage-height-in-grid-nested-in-flex-001.html	PASS	PASS	PASS	PASS	PASS	PASS
replaced-element-percentage-height-in-grid-nested-in-flex-002.html	PASS	PASS	PASS	PASS	PASS	PASS
stretch-grid-item-button-overflow.html	PASS	PASS	PASS	PASS	PASS	PASS
stretch-grid-item-checkbox-input.html	PASS	PASS	FAIL	FAIL	PASS	FAIL
stretch-grid-item-radio-input.html	PASS	PASS	FAIL	FAIL	FAIL	FAIL
stretch-grid-item-text-input-overflow.html	PASS	PASS	FAIL	FAIL	FAIL	FAIL
table-grid-item-005.html	PASS	PASS	PASS	FAIL	PASS	PASS
table-grid-item-dynamic-001.html	PASS	PASS	PASS	PASS	PASS	PASS
table-grid-item-dynamic-002.html	PASS	PASS	PASS	PASS	PASS	PASS
table-grid-item-dynamic-003.html	PASS	PASS	PASS	PASS	PASS	PASS
table-grid-item-dynamic-004.html	PASS	PASS	PASS	PASS	PASS	PASS
whitespace-reattach.html	PASS	PASS	PASS	PASS	PASS	FAIL