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conformance · v147

v147 · css-border-shape — 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-borders-4/#border-shape chromestatus: #5459864205393920 generated 2026-06-01T08:14:09Z by conformance-author-v1-subagent
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pass
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blocked
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id contract kind verdict detail
border-shape-property-supported The border-shape property is recognised by the CSS parser. spec ↗ css-supports
border-shape-polygon border-shape accepts a polygon() basic shape. spec ↗ css-supports
border-shape-shape-function border-shape accepts the shape() function for arbitrary paths. spec ↗ css-supports
border-shape-two-shape-variant border-shape accepts a two-shape variant for filling between two shapes. spec ↗ css-supports
border-shape-cssom-roundtrip border-shape round-trips through CSSStyleDeclaration.borderShape. spec ↗ script
border-shape-distinct-from-clip-path border-shape is a distinct property from clip-path — both can coexist on the same element. spec ↗ script