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conformance · v145

v145 · css-letter-spacing-and-word-spacing-percentage-values — 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-text-4/#letter-spacing-property chromestatus: #5106867491700736 generated 2026-06-01T08:14:32Z by conformance-author-v1-subagent
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id contract kind verdict detail
letter-spacing-percent-supported letter-spacing accepts a percentage value, computed against the advance of U+0020. spec ↗ css-supports
letter-spacing-negative-percent-supported letter-spacing accepts a negative percentage value for tightening. spec ↗ css-supports
word-spacing-percent-supported word-spacing accepts a percentage value, computed against the advance of U+0020. spec ↗ css-supports
word-spacing-negative-percent-supported word-spacing accepts a negative percentage value for tightening. spec ↗ css-supports
letter-spacing-length-still-supported The pre-existing letter-spacing <length> form is still supported, the foundation the new percent form composes with. css-supports
letter-spacing-percent-roundtrip Setting letter-spacing as a percentage via CSSOM round-trips through getComputedStyle as either a percentage or resolved length. spec ↗ script