← back to v134 · css-highlight-inheritance

conformance · v134

v134 · css-highlight-inheritance — conformance probe

8 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-pseudo-4/#highlight-cascade chromestatus: #5090853643354112 generated 2026-06-05T17:59:57Z by codex-highlight-inheritance-repair
0
pass
0
fail
0
blocked
8
total
id contract kind verdict detail
selection-pseudo-selector-parses ::selection is recognized as a highlight pseudo-element selector. spec ↗ css-supports
spelling-error-pseudo-selector-parses ::spelling-error is recognized as a highlight pseudo-element selector. spec ↗ css-supports
grammar-error-pseudo-selector-parses ::grammar-error is recognized as a highlight pseudo-element selector. spec ↗ css-supports
custom-highlight-selector-parses Named custom highlights parse with the ::highlight(name) selector syntax. spec ↗ css-supports
selection-inherit-keyword-uses-parent-highlight A descendant ::selection using inherit receives color and background-color from its parent's ::selection highlight. spec ↗ script
descendant-highlight-inherits-unspecified-background A descendant ::selection can override color while inheriting an unspecified background-color from the parent highlight. spec ↗ script
root-selection-allows-inherited-document-theme :root::selection can provide a document-wide selection theme that descendants inherit through the highlight chain. spec ↗ script
custom-properties-come-from-originating-element Custom properties used inside a highlight come from the originating element, preserving existing CSS-variable based selection themes. spec ↗ script