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conformance · v143

v143 · css-anchored-fallback-container-queries — conformance probe

6 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-anchor-position-2/#anchored-container-queries chromestatus: #5177580990496768 generated 2026-06-01T09:10:00Z by conformance-author-v1-subagent
0
pass
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fail
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blocked
6
total
id contract kind verdict detail
container-type-anchored container-type: anchored is a recognised value. spec ↗ css-supports
container-type-anchored-inline-size anchored can be combined with size container-types such as inline-size. spec ↗ css-supports
anchored-fallback-none @container anchored(fallback: none) parses as a valid conditional rule. spec ↗ script
anchored-fallback-named @container anchored(fallback: <dashed-ident>) parses, naming a position-try fallback. spec ↗ script
anchored-fallback-flip-block @container anchored(fallback: flip-block) parses, naming a try-tactic fallback. spec ↗ script
anchored-combined-with-not @container anchored(not (fallback: none)) parses as a boolean-combined query. spec ↗ script