Status

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

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

Score history

Data from commit:
ab0e30b Give form controls a UA default font-family (#940) (2026-09-25)

Area	Interop Score	Tests	Test %	Subtests	Subtest %
Total	27.56%	(2/28)	7.14%	(26/95)	27.37%

Test	Subtests	Subtest %	Status
flexbox-column-block-end.html	(1/2)	50.00%	FAIL
flexbox-column-block-start.html	(0/2)	0.00%	FAIL
flexbox-column-inline-end.html	(0/3)	0.00%	FAIL
flexbox-column-inline-start.html	(0/3)	0.00%	FAIL
flexbox-column-multi-line-block-end.html	(2/4)	50.00%	FAIL
flexbox-column-multi-line-block-start.html	(0/4)	0.00%	FAIL
flexbox-column-multi-line-block.html	(0/4)	0.00%	FAIL
flexbox-column-multi-line-inline-end.html	(2/4)	50.00%	FAIL
flexbox-column-multi-line-inline-start.html	(0/4)	0.00%	FAIL
flexbox-column-style-change-triggers-layout-block-start.html	(2/2)	100.00%	PASS
flexbox-row-block-end.html	(0/3)	0.00%	FAIL
flexbox-row-block-start.html	(0/3)	0.00%	FAIL
flexbox-row-block.html	(0/3)	0.00%	FAIL
flexbox-row-inline-end.html	(2/3)	66.67%	FAIL
flexbox-row-inline-start.html	(0/3)	0.00%	FAIL
flexbox-row-multi-line-block-end.html	(2/4)	50.00%	FAIL
flexbox-row-multi-line-block-start.html	(0/4)	0.00%	FAIL
flexbox-row-multi-line-block.html	(0/4)	0.00%	FAIL
flexbox-row-multi-line-inline-end.html	(2/4)	50.00%	FAIL
flexbox-row-multi-line-inline-start.html	(0/4)	0.00%	FAIL
grid-block-end-column-auto-flow.html	(3/5)	60.00%	FAIL
grid-block-end-item-spans-multiple-rows.html	(0/2)	0.00%	FAIL
grid-block-end.html	(3/4)	75.00%	FAIL
grid-block-start.html	(2/4)	50.00%	FAIL
grid-inline-end-columns-added-to-end.html	(2/2)	100.00%	PASS
grid-inline-end-items-in-last-column-trimmed.html	(2/4)	50.00%	FAIL
grid-inline-start-item-negative-span.html	(0/2)	0.00%	FAIL
grid-inline-start.html	(1/5)	20.00%	FAIL