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conformance · v132

v132 · css-inertness — 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-ui-4/#interactivity chromestatus: #5107436833472512 generated 2026-06-01T08:15:00Z by conformance-author-v1-subagent
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id contract kind verdict detail
interactivity-property-supported The interactivity CSS property parses. spec ↗ css-supports
interactivity-inert interactivity accepts the inert keyword, which marks the element and descendants as inert. spec ↗ css-supports
interactivity-auto interactivity accepts the auto keyword, restoring normal interactivity. spec ↗ css-supports
inert-attribute-still-exists The HTML inert attribute remains the script-side counterpart and is reflected on HTMLElement. script
interactivity-applies-inert-flag Setting interactivity:inert in CSS makes a focusable child non-focusable via sequential focus. spec ↗ script
interactivity-rejects-bad-value interactivity only accepts the defined keywords; arbitrary identifiers are rejected. script