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conformance · v135

v135 · nested-pseudo-elements-styling — conformance probe

5 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://www.w3.org/TR/css-pseudo-4/ chromestatus: #5199947786616832 generated 2026-06-01T09:39:00Z by conformance-author-v1-subagent
0
pass
0
fail
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blocked
5
total
id contract kind verdict detail
before-marker-selector-parses ::before::marker compound pseudo-element selector parses. spec ↗ script
after-first-letter-selector-parses ::after::first-letter parses as a nested pseudo-element selector. spec ↗ script
marker-pseudo-still-supported-alone ::marker still parses standalone (regression check). spec ↗ script
content-property-in-before content property is supported — required to make ::before generate the box that holds ::marker. spec ↗ css-supports
nested-selector-text-roundtrip selectorText for a nested pseudo round-trips through the CSSOM. spec ↗ script