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conformance · v131

v131 · css-anchor-positioning-anchor-scope — conformance probe

10 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/#anchor-scope chromestatus: #5094192052436992 generated 2026-06-06T02:22:25Z by codex-auto-research
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id contract kind verdict detail
anchor-scope-none The anchor-scope property accepts the keyword none (the initial value). spec ↗ css-supports
anchor-scope-all anchor-scope accepts the all keyword to scope every dashed-ident anchor on the subtree. css-supports
anchor-scope-named anchor-scope accepts a list of dashed-ident anchor names. css-supports
anchor-scope-multiple anchor-scope accepts a comma-separated list of named anchors. css-supports
anchor-name-still-supported The companion anchor-name property is still supported (anchor-scope only constrains what anchor-name exposes). css-supports
position-area-block-start-span-inline-end Anchored popovers can use the current position-area property to place a tooltip above and inline-spanning from its anchor. spec ↗ css-supports
position-area-block-end-span-inline-end Anchored popovers can use the current position-area property to place a submenu below and inline-spanning from its anchor. spec ↗ css-supports
anchor-scope-cssom-roundtrip Setting anchor-scope through CSSOM round-trips through getComputedStyle. script
anchor-function-top-edge Anchored elements can align their top inset to an anchor's top edge with anchor(top). spec ↗ css-supports
ancestor-anchor-scope-wrapper-roundtrip An ancestor wrapper can carry anchor-scope while a descendant trigger separately declares anchor-name. spec ↗ script