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conformance · v136

v136 · fluent-scrollbars — 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-scrollbars-1/ chromestatus: #5693137379917824 generated 2026-06-01T08:03:56Z by conformance-author-v1-subagent
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id contract kind verdict detail
scrollbar-width-supported CSS scrollbar-width property is supported — the standardised author control over scrollbar chrome. spec ↗ css-supports
scrollbar-width-auto scrollbar-width accepts the `auto` keyword, the default fluent rendering. spec ↗ css-supports
scrollbar-width-none scrollbar-width accepts `none` so authors can suppress scrollbar chrome entirely. spec ↗ css-supports
scrollbar-color-supported scrollbar-color accepts a thumb/track color pair. spec ↗ css-supports
scrollbar-gutter-supported scrollbar-gutter accepts `stable` so authors can reserve gutter space regardless of scrollbar chrome thickness. spec ↗ css-supports
scrollbar-roundtrip-cssom Setting scrollbar-width via CSSOM round-trips through getComputedStyle. spec ↗ script