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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-conditional / container-queries

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-conditional/container-queries

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

AreaInterop ScoreTestsTest %SubtestsSubtest %
Total24.27%(73/319)22.88%(91/1543)5.90%
scroll-state0.00%(0/57)0.00%(0/237)0.00%
crashtests100.00%(60/60)100.00%(60/60)100.00%
TestSubtestsSubtest %Status
animation-container-size.html(0/1)0.00%FAIL
animation-container-type-dynamic.html(0/1)0.00%FAIL
animation-nested-animation.html(0/1)0.00%FAIL
animation-nested-transition.html(0/1)0.00%FAIL
aspect-ratio-feature-evaluation.html(0/2)0.00%FAIL
at-container-parsing.html(0/117)0.00%FAIL
at-container-serialization.html(0/19)0.00%FAIL
at-container-style-parsing.html(0/41)0.00%FAIL
at-container-style-serialization.html(0/17)0.00%FAIL
auto-scrollbars.html(0/2)0.00%FAIL
backdrop-invalidation.html(0/1)0.00%FAIL
calc-evaluation.html(0/1)0.00%FAIL
canvas-as-container-001.html(0/1)0.00%FAIL
canvas-as-container-002.html(0/1)0.00%FAIL
canvas-as-container-003.html(0/1)0.00%FAIL
canvas-as-container-004.html(0/1)0.00%FAIL
canvas-as-container-005.html(0/2)0.00%FAIL
canvas-as-container-006.html(0/2)0.00%FAIL
change-display-in-container.html(0/1)0.00%FAIL
chrome-legacy-skip-recalc.html(0/1)0.00%FAIL
column-spanner-in-container.html(0/3)0.00%FAIL
comma-separated-invalidation.html(0/3)0.00%FAIL
comma-separated-skip-invalid.html(0/2)0.00%FAIL
conditional-container-status.html(0/1)0.00%FAIL
container-computed.html(0/14)0.00%FAIL
container-for-cue.html(1/1)100.00%PASS
container-for-shadow-dom.html(0/21)0.00%FAIL
container-ident-function.html(0/4)0.00%FAIL
container-inheritance.html(0/4)0.00%FAIL
container-inner-at-rules.html(0/6)0.00%FAIL
container-inside-multicol-with-table.html(0/2)0.00%FAIL
container-longhand-animation-type.html(0/3)0.00%FAIL
container-name-computed.html(0/10)0.00%FAIL
container-name-invalidation.html(0/2)0.00%FAIL
container-name-parsing.html(0/29)0.00%FAIL
container-name-tree-scoped.html(0/4)0.00%FAIL
container-nested.html(0/14)0.00%FAIL
container-parsing.html(0/48)0.00%FAIL
container-rule-cssom.html(0/8)0.00%FAIL
container-selection-unknown-features.html(0/3)0.00%FAIL
container-selection.html(0/21)0.00%FAIL
container-size-invalidation-after-load.html(0/1)0.00%FAIL
container-size-invalidation.html(0/2)0.00%FAIL
container-size-nested-invalidation.html(0/1)0.00%FAIL
container-size-rem-change.html(1/2)50.00%FAIL
container-size-shadow-invalidation.html(0/2)0.00%FAIL
container-type-computed.html(0/5)0.00%FAIL
container-type-containment.html(0/4)0.00%FAIL
container-type-invalidation.html(0/1)0.00%FAIL
container-type-layout-invalidation.html(0/1)0.00%FAIL
container-type-parsing.html(0/30)0.00%FAIL
container-units-animation.html(0/24)0.00%FAIL
container-units-auto.html(0/1)0.00%FAIL
container-units-basic.html(0/2)0.00%FAIL
container-units-computational-independence.html(0/6)0.00%FAIL
container-units-content-box.html(0/2)0.00%FAIL
container-units-gradient-invalidation.html(0/1)0.00%FAIL
container-units-gradient.html(0/1)0.00%FAIL
container-units-in-at-container-dynamic.html(0/1)0.00%FAIL
container-units-in-at-container-fallback.html(0/1)0.00%FAIL
container-units-in-at-container.html(0/18)0.00%FAIL
container-units-ineligible-container.html(0/9)0.00%FAIL
container-units-invalidation.html(0/5)0.00%FAIL
container-units-media-queries.html(0/8)0.00%FAIL
container-units-rule-cache.html(0/1)0.00%FAIL
container-units-selection-pseudo.html(1/1)100.00%PASS
container-units-selection.html(0/2)0.00%FAIL
container-units-shadow.html(0/2)0.00%FAIL
container-units-sharing-via-rule-node.html(0/1)0.00%FAIL
container-units-small-viewport-fallback.html(0/1)0.00%FAIL
container-units-svglength.html(0/7)0.00%FAIL
container-units-typed-om.html(0/24)0.00%FAIL
counters-flex-circular.html(0/4)0.00%FAIL
counters-in-container-dynamic.html(0/1)0.00%FAIL
counters-in-container.html(0/1)0.00%FAIL
custom-layout-container-001.https.html(0/1)0.00%FAIL
custom-property-style-queries.html(0/78)0.00%FAIL
custom-property-style-query-change.html(0/6)0.00%FAIL
custom-property-style-query-multiline-var.html(0/5)0.00%FAIL
deep-nested-inline-size-containers.html(0/1)0.00%FAIL
dialog-backdrop-create.html(0/1)0.00%FAIL
dialog-backdrop-remove.html(1/1)100.00%PASS
display-contents-dynamic-style-queries.html(0/2)0.00%FAIL
display-contents-style-query-descendant-restyle.html(0/2)0.00%FAIL
display-contents.html(0/3)0.00%FAIL
display-in-container.html(0/1)0.00%FAIL
display-none.html(0/19)0.00%FAIL
fieldset-legend-change.html(0/1)0.00%FAIL
first-letter-outside-size-container.html(0/1)0.00%FAIL
flex-basis-with-container-type.html(0/1)0.00%FAIL
font-relative-calc-dynamic.html(0/1)0.00%FAIL
font-relative-units-dynamic.html(0/12)0.00%FAIL
font-relative-units.html(0/12)0.00%FAIL
fragmented-container-001.html(0/1)0.00%FAIL
get-animations.html(0/1)0.00%FAIL
grid-container.html(0/1)0.00%FAIL
grid-item-container.html(0/1)0.00%FAIL
idlharness.html(7/28)25.00%FAIL
iframe-in-container-invalidation.html(0/1)0.00%FAIL
iframe-invalidation.html(0/1)0.00%FAIL
ineligible-containment.html(0/2)0.00%FAIL
inheritance-from-container.html(0/4)0.00%FAIL
inline-size-and-min-width.html(0/1)0.00%FAIL
inline-size-bfc-floats.html(0/1)0.00%FAIL
inline-size-containment-vertical-rl.html(0/1)0.00%FAIL
inline-size-containment.html(0/1)0.00%FAIL
inner-first-line-non-matching.html(0/1)0.00%FAIL
layout-dependent-focus.html(0/1)0.00%FAIL
multicol-container-001.html(0/1)0.00%FAIL
multicol-inside-container.html(0/1)0.00%FAIL
multiple-conditions-001.html(0/1)0.00%FAIL
multiple-size-containers-comma-separated-queries.html(0/1)0.00%FAIL
multiple-style-containers-comma-separated-queries.html(0/2)0.00%FAIL
nested-query-containers.html(0/32)0.00%FAIL
nested-size-style-container-invalidation.html(0/2)0.00%FAIL
nested-style-size-container.html(0/1)0.00%FAIL
never-match-container.html(0/2)0.00%FAIL
no-layout-containment-abspos-dynamic.html(0/1)0.00%FAIL
no-layout-containment-abspos.html(0/1)0.00%FAIL
no-layout-containment-baseline.html(1/1)100.00%PASS
no-layout-containment-fixedpos-dynamic.html(0/1)0.00%FAIL
no-layout-containment-fixedpos.html(0/1)0.00%FAIL
no-layout-containment-scroll.html(1/1)100.00%PASS
no-layout-containment-subgrid-crash.html(1/1)100.00%PASS
orthogonal-wm-container-query.html(0/2)0.00%FAIL
percentage-padding-orthogonal.html(0/6)0.00%FAIL
position-sticky-crash.html(1/1)100.00%PASS
pseudo-elements-001.html(0/2)0.00%FAIL
pseudo-elements-002.html(0/1)0.00%FAIL
pseudo-elements-002b.html(0/1)0.00%FAIL
pseudo-elements-003.html(0/8)0.00%FAIL
pseudo-elements-004.html(0/12)0.00%FAIL
pseudo-elements-005.html(0/3)0.00%FAIL
pseudo-elements-006.html(0/8)0.00%FAIL
pseudo-elements-007.html(0/12)0.00%FAIL
pseudo-elements-008.html(0/9)0.00%FAIL
pseudo-elements-009.html(0/1)0.00%FAIL
pseudo-elements-010.html(0/1)0.00%FAIL
pseudo-elements-011.html(0/1)0.00%FAIL
pseudo-elements-012.html(0/1)0.00%FAIL
pseudo-elements-013.html(0/3)0.00%FAIL
query-container-name-dynamic.html(1/3)33.33%FAIL
query-container-name.html(1/5)20.00%FAIL
query-content-box.html(0/6)0.00%FAIL
query-evaluation-style.html(0/91)0.00%FAIL
query-evaluation.html(0/38)0.00%FAIL
query-style-color-powerless.html(0/9)0.00%FAIL
query-style-color.html(0/1)0.00%FAIL
reattach-container-with-dirty-child.html(0/2)0.00%FAIL
registered-color-style-queries.html(0/2)0.00%FAIL
resize-while-content-visibility-hidden.html(0/1)0.00%FAIL
scrollbar-container-units-block.html(0/1)0.00%FAIL
scrollbar-container-units-inline.html(1/1)100.00%PASS
sibling-layout-dependency.html(0/4)0.00%FAIL
size-container-auto-height.html(0/1)0.00%FAIL
size-container-no-principal-box.html(0/6)0.00%FAIL
size-container-popover-change.html(1/1)100.00%PASS
size-container-with-quotes.html(1/1)100.00%PASS
size-container-writing-mode-change.html(0/2)0.00%FAIL
size-feature-evaluation.html(0/56)0.00%FAIL
size-query-with-var.html(0/11)0.00%FAIL
style-change-in-container.html(0/1)0.00%FAIL
style-container-for-shadow-dom.html(0/12)0.00%FAIL
style-container-invalidation-inheritance.html(0/2)0.00%FAIL
style-negation-with-container-name.html(0/1)0.00%FAIL
style-not-sharing-float.html(0/1)0.00%FAIL
style-query-attr-change-svg.html(1/3)33.33%FAIL
style-query-attr-tainted.html(0/1)0.00%FAIL
style-query-change-with-ancestor-zoom.html(0/3)0.00%FAIL
style-query-container-name-change.html(0/1)0.00%FAIL
style-query-custom-attr-change-named-container.html(1/2)50.00%FAIL
style-query-custom-attr-change.html(1/2)50.00%FAIL
style-query-document-element.html(0/1)0.00%FAIL
style-query-guaranteed-invalid.tentative.html(0/1)0.00%FAIL
style-query-no-cycle.html(0/1)0.00%FAIL
style-query-registered-custom-em-change.html(1/2)50.00%FAIL
style-query-registered-custom-invalid.tentative.html(0/1)0.00%FAIL
style-query-registered-custom-rem-change.html(1/2)50.00%FAIL
style-query-registered-custom-removed-initial.html(0/2)0.00%FAIL
style-query-registered-custom-root-relative-units-change.html(0/4)0.00%FAIL
style-query-unset-on-root.html(0/1)0.00%FAIL
style-query-with-container-name-custom-change.html(2/3)66.67%FAIL
style-query-with-unknown-width.html(0/1)0.00%FAIL
style-range-dynamic.html(1/7)14.29%FAIL
style-range-var-in-function-change.html(0/3)0.00%FAIL
svg-foreignobject-child-container.html(0/1)0.00%FAIL
svg-foreignobject-no-size-container.html(1/1)100.00%PASS
svg-g-no-size-container.html(1/1)100.00%PASS
svg-root-size-container.html(0/2)0.00%FAIL
table-inside-container-changing-display.html(0/1)0.00%FAIL
top-layer-dialog-backdrop.html(1/1)100.00%PASS
top-layer-dialog-container.html(0/2)0.00%FAIL
top-layer-dialog.html(0/4)0.00%FAIL
top-layer-nested-dialog.html(0/3)0.00%FAIL
transition-scrollbars.html(0/1)0.00%FAIL
transition-style-change-event-002.html(0/1)0.00%FAIL
transition-style-change-event.html(0/1)0.00%FAIL
unsupported-axis.html(0/16)0.00%FAIL
var-evaluation.html(0/1)0.00%FAIL
viewport-units-dynamic.html(0/1)0.00%FAIL
viewport-units.html(0/2)0.00%FAIL
whitespace-update-after-removal.html(0/1)0.00%FAIL