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conformance · v131

v131 · deprecation-of-css-anchor-positioning-property-inset-area — 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-1/#position-area chromestatus: #6567965055778816 generated 2026-06-05T22:49:37Z by manual-codex-devtools-mcp
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pass
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fail
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blocked
6
total
id contract kind verdict detail
position-area-supported The new position-area property is supported (the rename target). spec ↗ css-supports
position-area-center position-area accepts the center keyword. css-supports
position-area-span-two-keywords position-area accepts a two-keyword value like 'top span-all'. css-supports
position-area-corner-keywords position-area accepts corner values such as bottom right, matching the migration selector's direction options. spec ↗ css-supports
position-area-logical position-area accepts logical position keywords like 'block-start'. css-supports
inset-area-still-aliased-or-removed inset-area is either no longer recognised or accepted only as a legacy alias. position-area is the property reflected via CSSOM. script