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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-ui

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-ui

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

AreaInterop ScoreTestsTest %SubtestsSubtest %
Total88.67%(945/1083)87.26%(2172/3246)66.91%
animation54.75%(0/12)0.00%(575/1009)56.99%
compute-kind-widget-generated100.00%(802/802)100.00%(802/802)100.00%
parsing71.43%(22/39)56.41%(238/358)66.48%
tentative70.00%(7/10)70.00%(13/16)81.25%
crashtests100.00%(4/4)100.00%(4/4)100.00%
TestSubtestsSubtest %Status
accent-color-checkbox-checked-001.html(0/1)0.00%FAIL
accent-color-computed.html(0/7)0.00%FAIL
accent-color-invalidation-currentcolor.html(0/1)0.00%FAIL
accent-color-parent-currentcolor.html(1/1)100.00%PASS
accent-color-parsing.html(1/10)10.00%FAIL
accent-color-radio-checked-001.html(0/1)0.00%FAIL
accent-color-visited.html(1/1)100.00%PASS
appearance-auto-001.html(1/1)100.00%PASS
appearance-auto-details-list-item.html(1/1)100.00%PASS
appearance-auto-input-non-widget-001.html(1/1)100.00%PASS
appearance-auto-non-html-namespace-001.html(1/1)100.00%PASS
appearance-button-001.html(1/1)100.00%PASS
appearance-checkbox-001.html(1/1)100.00%PASS
appearance-cssom-001.html(341/341)100.00%PASS
appearance-cssom-001.html?exclude=Invalid(0/41)0.00%MISSING
appearance-cssom-001.html?include=Invalid(0/300)0.00%MISSING
appearance-initial-value-001.html(4/4)100.00%PASS
appearance-invalidate-author-styling-001-ref.html(0/1)0.00%FAIL
appearance-invalidate-author-styling-001.html(1/1)100.00%PASS
appearance-listbox-001.html(1/1)100.00%PASS
appearance-menulist-001.html(1/1)100.00%PASS
appearance-menulist-button-001.html(1/1)100.00%PASS
appearance-menulist-button-002.tentative.html(0/1)0.00%FAIL
appearance-meter-001.html(1/1)100.00%PASS
appearance-parsing.html(3/3)100.00%PASS
appearance-progress-bar-001.html(1/1)100.00%PASS
appearance-progress-bar-002.html(1/1)100.00%PASS
appearance-property.html(5/5)100.00%PASS
appearance-radio-001.html(1/1)100.00%PASS
appearance-revert-001.tentative.html(1/1)100.00%PASS
appearance-searchfield-001.html(1/1)100.00%PASS
appearance-serialization.html(3/3)100.00%PASS
appearance-textarea-001.html(1/1)100.00%PASS
appearance-textfield-001.html(1/1)100.00%PASS
box-sizing-001.html(1/1)100.00%PASS
box-sizing-003.html(1/1)100.00%PASS
box-sizing-005.html(1/1)100.00%PASS
box-sizing-007.html(0/1)0.00%FAIL
box-sizing-008.html(0/1)0.00%FAIL
box-sizing-009.html(0/1)0.00%FAIL
box-sizing-010.html(0/1)0.00%FAIL
box-sizing-011.html(0/1)0.00%FAIL
box-sizing-012.html(0/1)0.00%FAIL
box-sizing-013.html(0/1)0.00%FAIL
box-sizing-014.html(0/1)0.00%FAIL
box-sizing-015.html(0/1)0.00%FAIL
box-sizing-016.html(0/1)0.00%FAIL
box-sizing-017.html(0/1)0.00%FAIL
box-sizing-018.html(0/1)0.00%FAIL
box-sizing-019.html(0/1)0.00%FAIL
box-sizing-020.html(0/1)0.00%FAIL
box-sizing-021.html(0/1)0.00%FAIL
box-sizing-022.html(0/1)0.00%FAIL
box-sizing-023.html(0/1)0.00%FAIL
box-sizing-024.html(0/1)0.00%FAIL
box-sizing-025.html(0/1)0.00%FAIL
box-sizing-026.html(1/1)100.00%PASS
box-sizing-027.html(2/2)100.00%PASS
button-author-level-padding-applies.html(1/1)100.00%PASS
caret-color-009.html(3/3)100.00%PASS
caret-color-013.html(11/11)100.00%PASS
caret-color-016.html(1/1)100.00%PASS
caret-color-018.html(0/1)0.00%FAIL
caret-color-019.html(0/1)0.00%FAIL
caret-color-020.html(0/1)0.00%FAIL
caret-color-021.html(1/1)100.00%PASS
caret-color-bar-shape-text-color.html(1/1)100.00%PASS
caret-color-block-shape-text-color-001.html(0/1)0.00%FAIL
caret-color-block-shape-text-color-002.html(0/1)0.00%FAIL
caret-color-block-shape-text-color-003.html(0/1)0.00%FAIL
caret-color-block-shape-text-color-004.html(0/1)0.00%FAIL
caret-color-block-shape-text-color-005.html(0/1)0.00%FAIL
caret-color-underscore-shape-text-color.html(1/1)100.00%PASS
caret-eol-001.html(0/1)0.00%FAIL
caret-eol-002.html(0/1)0.00%FAIL
caret-eol-003.html(1/1)100.00%PASS
caret-eol-004.tentative.html(0/1)0.00%FAIL
caret-shape-block-001-rtl-sideways-lr.html(1/1)100.00%PASS
caret-shape-block-001-rtl-sideways-rl.html(1/1)100.00%PASS
caret-shape-block-001-rtl-vlr.html(1/1)100.00%PASS
caret-shape-block-001-rtl-vrl.html(1/1)100.00%PASS
caret-shape-block-001-rtl.html(1/1)100.00%PASS
caret-shape-block-001-sideways-lr.html(1/1)100.00%PASS
caret-shape-block-001-sideways-rl.html(1/1)100.00%PASS
caret-shape-block-001-vlr.html(1/1)100.00%PASS
caret-shape-block-001-vrl.html(1/1)100.00%PASS
caret-shape-block-001.html(1/1)100.00%PASS
caret-shape-block-002.html(0/1)0.00%FAIL
caret-shape-block-color-001.html(0/1)0.00%FAIL
caret-shape-block-color-002.tentative.html(0/1)0.00%FAIL
caret-shape-block-color-003.tentative.html(0/1)0.00%FAIL
caret-shape-block-color-004.tentative.html(0/1)0.00%FAIL
caret-shape-block-empty-001.html(0/1)0.00%FAIL
caret-shape-block-empty-002.html(0/1)0.00%FAIL
caret-shape-block-fallback-001.html(0/1)0.00%FAIL
caret-shape-block-zoom.html(0/1)0.00%FAIL
caret-shape-parsing.html(5/13)38.46%FAIL
caret-shape-underscore-001.html(0/1)0.00%FAIL
caret-shape-underscore-empty-001.html(0/1)0.00%FAIL
compute-kind-widget-fallback-props-revert-001.html(1/1)100.00%PASS
compute-kind-widget-no-fallback-props-001.html(0/1)0.00%FAIL
cursor-calc-hotspot.html(4/4)100.00%PASS
inert-attribute-overriding.html(0/4)0.00%FAIL
inheritance.html(16/28)57.14%FAIL
input-security-auto-sensitive-text-input.html(0/1)0.00%FAIL
input-security-computed.html(0/4)0.00%FAIL
input-security-non-sensitive-elements.html(1/1)100.00%PASS
input-security-none-sensitive-text-input.html(1/1)100.00%PASS
input-security-parsing.html(4/10)40.00%FAIL
interactivity-inert-all.html(0/1)0.00%FAIL
interactivity-inert-animated.html(0/1)0.00%SKIP
interactivity-inert-click.html(0/2)0.00%SKIP
interactivity-inert-find.html(0/3)0.00%FAIL
interactivity-inert-focus.html(2/3)66.67%FAIL
interactivity-inert-fullscreen-ua.html(0/5)0.00%FAIL
interactivity-inert-html-attribute-ua.html(0/4)0.00%FAIL
interactivity-inert-modal-dialog-ua.html(0/5)0.00%FAIL
native-appearance-disabled-for-value-unset.html(1/1)100.00%PASS
neg-outline-offset-border-radius-crash.html(1/1)100.00%PASS
negative-outline-offset.html(0/1)0.00%FAIL
outline-001.html(1/1)100.00%PASS
outline-002.html(1/1)100.00%PASS
outline-003.html(0/1)0.00%FAIL
outline-004.html(0/1)0.00%FAIL
outline-005.html(0/1)0.00%FAIL
outline-007.html(0/1)0.00%FAIL
outline-008.html(1/1)100.00%PASS
outline-009.html(1/1)100.00%PASS
outline-010.html(0/1)0.00%FAIL
outline-011.html(0/1)0.00%FAIL
outline-012.html(0/1)0.00%FAIL
outline-013.html(0/1)0.00%FAIL
outline-014.html(0/1)0.00%FAIL
outline-015.html(0/1)0.00%FAIL
outline-016.html(0/1)0.00%FAIL
outline-017.html(3/3)100.00%PASS
outline-018.html(1/1)100.00%PASS
outline-019.html(0/1)0.00%FAIL
outline-020.html(0/1)0.00%FAIL
outline-021.html(1/1)100.00%PASS
outline-022.html(0/1)0.00%FAIL
outline-023.html(1/1)100.00%PASS
outline-024.html(1/1)100.00%PASS
outline-025.html(1/1)100.00%PASS
outline-026.html(1/1)100.00%PASS
outline-027.html(1/1)100.00%PASS
outline-028.html(0/1)0.00%FAIL
outline-auto-dynamic-change.html(1/1)100.00%PASS
outline-auto-width-001.html(1/1)100.00%PASS
outline-color-001.html(1/1)100.00%PASS
outline-color-002.html(1/1)100.00%PASS
outline-color-003.html(1/1)100.00%PASS
outline-color-004.html(1/1)100.00%PASS
outline-dynamic.html(1/1)100.00%PASS
outline-negative-offset-composited-scroll.html(0/1)0.00%FAIL
outline-offset-001.html(0/1)0.00%FAIL
outline-offset-inset-001.html(1/1)100.00%PASS
outline-offset-inset-002.html(1/1)100.00%PASS
outline-offset-inset-003.html(1/1)100.00%PASS
outline-offset-inset-004.html(1/1)100.00%PASS
outline-offset-inset-005.html(1/1)100.00%PASS
outline-offset-inset-006.html(0/1)0.00%FAIL
outline-offset-table-001.html(0/1)0.00%FAIL
outline-offset.html(0/1)0.00%FAIL
outline-style-011.html(0/1)0.00%FAIL
outline-style-012.html(0/1)0.00%FAIL
outline-style-013.html(0/1)0.00%FAIL
outline-style-014.html(0/1)0.00%FAIL
outline-style-inherit.html(1/1)100.00%PASS
outline-width-rounding.tentative.html(12/12)100.00%PASS
outline-with-001-crash.html(1/1)100.00%PASS
outline-with-padding-001.html(1/1)100.00%PASS
pointer-events-no-scrollbars-001.html(1/1)100.00%PASS
pointer-events-no-scrollbars-002.html(1/1)100.00%PASS
resize-015.html(0/1)0.00%SKIP
resize-016.html(0/1)0.00%SKIP
resize-017.html(0/1)0.00%SKIP
resize-018.html(0/1)0.00%SKIP
resize-change-margin.html(1/1)100.00%PASS
resize-child-will-change-transform.html(1/1)100.00%PASS
resize-generated-content.html(1/1)100.00%PASS
resize-iframe-3d-transform.tentative.html(0/1)0.00%FAIL
resize-interactive.html(0/10)0.00%SKIP
resize-textarea-relative-to-right-001.tentative.html(0/1)0.00%SKIP
resize-textarea-rtl-001.tentative.html(0/1)0.00%SKIP
resize-textarea-rtl-002.tentative.html(0/1)0.00%SKIP
select-author-level-padding-applies.html(1/1)100.00%PASS
subpixel-outline-width.tentative.html(1/1)100.00%PASS
translucent-outline.html(1/1)100.00%PASS
transparent-accent-color-001.html(1/1)100.00%PASS
transparent-accent-color-002.html(1/1)100.00%PASS
user-select-001.html(0/1)0.00%SKIP
user-select-button.html(0/6)0.00%SKIP
user-select-inheritance.html(4/5)80.00%FAIL
user-select-none-in-editable.html(0/1)0.00%FAIL
user-select-none-on-input.html(0/2)0.00%SKIP
webkit-appearance-auto-001.html(1/1)100.00%PASS
webkit-appearance-auto-input-non-widget-001.html(1/1)100.00%PASS
webkit-appearance-auto-non-html-namespace-001.html(1/1)100.00%PASS
webkit-appearance-button-001.html(1/1)100.00%PASS
webkit-appearance-checkbox-001.html(1/1)100.00%PASS
webkit-appearance-listbox-001.html(1/1)100.00%PASS
webkit-appearance-menulist-001.html(1/1)100.00%PASS
webkit-appearance-menulist-button-001.html(1/1)100.00%PASS
webkit-appearance-menulist-button-002.tentative.html(0/1)0.00%FAIL
webkit-appearance-meter-001.html(1/1)100.00%PASS
webkit-appearance-parsing.html(3/3)100.00%PASS
webkit-appearance-progress-bar-001.html(1/1)100.00%PASS
webkit-appearance-progress-bar-002.html(1/1)100.00%PASS
webkit-appearance-property.html(15/15)100.00%PASS
webkit-appearance-radio-001.html(1/1)100.00%PASS
webkit-appearance-searchfield-001.html(1/1)100.00%PASS
webkit-appearance-serialization.html(3/3)100.00%PASS
webkit-appearance-textarea-001.html(1/1)100.00%PASS
webkit-appearance-textfield-001.html(1/1)100.00%PASS
widget-percentage-height-001.html(0/1)0.00%FAIL