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conformance · v145

v145 · css-name-only-container-queries — conformance probe

5 assertions drawn from the spec. Each is a single contract the spec text makes. Pass/fail reflects what this browser executed; blocked means the contract was not run because it needs user mediation, hardware, or another unavailable precondition. Open the page in Chrome stable / canary / Firefox / Safari to compare.

browser: spec: https://drafts.csswg.org/css-conditional-5/#container-rule chromestatus: #5184267522015232 generated 2026-06-01T08:14:32Z by conformance-author-v1-subagent
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pass
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fail
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blocked
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id contract kind verdict detail
container-name-supported The container-name CSS property is supported — it can now act as a name-only query container with no container-type. spec ↗ css-supports
container-shorthand-name-only-supported The container shorthand accepts a name-only declaration (no slash, no type). spec ↗ css-supports
container-type-still-supported The pre-existing container-type CSS property still works — the new feature relaxes the requirement that it be set, not removes the property. css-supports
name-only-container-matches An @container --name rule (no size feature) matches an element scoped by container-name alone, even when container-type is normal. spec ↗ script
container-style-query-still-works The pre-existing @container style() query syntax still parses — feature is additive. spec ↗ css-supports