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Status

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

CSS PropertiesHTML ElementsEventsWPT TestsWPT History

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

wpt / css / css-viewport / zoom

Score history
1 month3 months6 months1 year2 years4 yearsAll time
0%20%40%60%80%100%May 2025Jul 2025Sep 2025Nov 2025Jan 2026Mar 2026May 2026Jul 2026Sep 2026css/css-viewport/zoom

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

AreaInterop ScoreTestsTest %SubtestsSubtest %
Total73.92%(97/135)71.85%(303/682)44.43%
explicit-inherit76.94%(15/20)75.00%(81/189)42.86%
parsing87.87%(2/3)66.67%(36/40)90.00%
TestSubtestsSubtest %Status
abspos-static-position.html(1/1)100.00%PASS
animation-range.html(1/1)100.00%PASS
background-image.html(0/1)0.00%FAIL
background-size.html(0/1)0.00%FAIL
basic.html(1/1)100.00%PASS
block-step-size.html(0/1)0.00%FAIL
border-image-outset.html(1/1)100.00%PASS
border-image-width.html(1/1)100.00%PASS
border-radius.html(0/1)0.00%FAIL
border-spacing-without-border.html(1/1)100.00%PASS
border-spacing.html(1/1)100.00%PASS
border-width-keywords.html(0/1)0.00%FAIL
border-width.html(0/1)0.00%FAIL
box-shadow-inset-spread.html(1/1)100.00%PASS
box-shadow.html(1/1)100.00%PASS
canvas.html(1/1)100.00%PASS
column-gap.html(0/1)0.00%FAIL
column-rule-width-keywords.html(1/1)100.00%PASS
column-rule-width.html(1/1)100.00%PASS
column-width.html(1/1)100.00%PASS
computed-border-width-keywords.html(0/3)0.00%FAIL
computed-column-rule-width-keywords.html(3/3)100.00%PASS
computed-initial.html(0/210)0.00%SKIP
computed-outline-width-keywords.html(0/3)0.00%FAIL
contain-intrinsic-height.html(1/1)100.00%PASS
contain-intrinsic-width.html(1/1)100.00%PASS
container-queries-block-size.html(1/1)100.00%PASS
container-queries-height.html(1/1)100.00%PASS
container-queries-inline-size.html(1/1)100.00%PASS
container-queries.html(1/1)100.00%PASS
custom-property.html(1/1)100.00%PASS
filters-blur.html(1/1)100.00%PASS
filters-drop-shadow.html(1/1)100.00%PASS
font-relative-units-with-zoom.html(7/7)100.00%PASS
font-relative-units.html(0/6)0.00%FAIL
font-size-keyword-specified.html(1/1)100.00%PASS
font-size-keyword-system-font.html(1/1)100.00%PASS
font-size.html(1/1)100.00%PASS
grid.html(0/1)0.00%FAIL
iframe-very-small-zoom-001-crash.html(1/1)100.00%PASS
iframe-zoom-nested.html(1/1)100.00%PASS
iframe-zoom.sub.html(0/1)0.00%FAIL
image-intrinsic-size.html(0/1)0.00%FAIL
inherited-length.html(1/1)100.00%PASS
inherited.html(1/1)100.00%PASS
length-implicit-and-explicit-inheritance.html(3/5)60.00%FAIL
letter-spacing.html(1/1)100.00%PASS
line-height-computed.html(2/6)33.33%FAIL
line-height.html(1/1)100.00%PASS
list-style-image.html(1/1)100.00%PASS
margin.html(1/1)100.00%PASS
mask-border-outset.html(1/1)100.00%PASS
mask-border-width.html(1/1)100.00%PASS
massive-zoom-viewbox-crash.html(0/1)0.00%CRASH
matrix-zoom-anim-computed.html(1/1)100.00%PASS
matrix-zoom-anim.html(0/1)0.00%FAIL
matrix-zoom.html(0/1)0.00%FAIL
matrix3d-zoom.html(1/1)100.00%PASS
outline-offset.html(1/1)100.00%PASS
outline-width-keywords.html(0/1)0.00%FAIL
outline-width.html(1/1)100.00%PASS
perspective-small-effective-zoom-crash.html(1/1)100.00%PASS
perspective.html(1/1)100.00%PASS
relative-units-from-parent.html(1/1)100.00%PASS
relative-units.html(6/6)100.00%PASS
row-gap.html(0/1)0.00%FAIL
scroll-corner-crash.html(1/1)100.00%PASS
scroll-margin.html(1/1)100.00%PASS
scroll-padding.html(1/1)100.00%PASS
scroll-top-test-with-zoom.html(2/2)100.00%PASS
scrollbar-crash.html(1/1)100.00%PASS
shape-outside-circle.html(0/1)0.00%FAIL
shape-outside-ellipse.html(0/1)0.00%FAIL
shape-outside-inset.html(1/1)100.00%PASS
shape-outside-polygon.html(1/1)100.00%PASS
shape-outside-rect.html(1/1)100.00%PASS
shape-outside-xywh.html(1/1)100.00%PASS
stroke.html(1/1)100.00%PASS
svg-computed-style.html(74/88)84.09%FAIL
svg-font-relative-units.html(1/1)100.00%PASS
svg-foreignObject-font-size.html(1/1)100.00%PASS
svg-path-simple.html(1/1)100.00%PASS
svg-path.html(1/1)100.00%PASS
svg-stroke-width.html(1/1)100.00%PASS
svg-transform.html(1/1)100.00%PASS
svg-viewBox.html(1/1)100.00%PASS
svg.html(0/1)0.00%FAIL
tab-size.html(1/1)100.00%PASS
text-decoration-thickness.html(1/1)100.00%PASS
text-indent-computed.html(10/10)100.00%PASS
text-indent-svg.html(1/1)100.00%PASS
text-indent.html(1/1)100.00%PASS
text-shadow.html(1/1)100.00%PASS
text-stroke-width.html(1/1)100.00%PASS
text-underline-offset.html(1/1)100.00%PASS
textarea-very-small-zoom-crash.html(1/1)100.00%PASS
tiny-zoom-iframe-crash.html(1/1)100.00%PASS
transform-matrix-2d.html(0/1)0.00%FAIL
transform-matrix-3d.html(0/1)0.00%FAIL
transform-perspective.html(1/1)100.00%PASS
transform-translate.html(0/1)0.00%FAIL
translate.html(0/1)0.00%FAIL
vertical-align.html(1/1)100.00%PASS
view-timeline-inset.html(0/1)0.00%FAIL
widget.html(2/2)100.00%PASS
word-spacing-inherited-computed.html(3/3)100.00%PASS
word-spacing.html(1/1)100.00%PASS
zoom-iframe-dynamic.html(0/1)0.00%FAIL
zoom-precision.html(1/1)100.00%PASS
zoom-pseudo-image.html(0/1)0.00%FAIL
zoom-revert-layer-crash.html(1/1)100.00%PASS
zoom-with-sign-function.html(2/2)100.00%PASS