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Coverage / css-conditional

CSS Conditional Rules Module Level 3

Specification: drafts.csswg.org/css-conditional-3/. 3 interfaces defined here, 6 members exposed on Window (Web IDL). Group: Test DOM core.

Existence only: “present” means the name is defined where Web IDL puts it, not that it behaves as the standard says. The featured checks test behavior.

Share present per engine
EngineMembers presentInterfaces present
warpdom0.1.6maintainer's engine67% (4 of 6)3 of 3
happy-dom21.0.367% (4 of 6)3 of 3
jsdom30.1.3100% (6 of 6)3 of 3
linkedom0.18.130% (0 of 6)0 of 3
5 of 5 interfaces
CSSnamespace, 1 member added to CSS (defined in CSS Object Model (CSSOM))warpdom: 1/1happy-dom: 1/1jsdom: 1/1linkedom: 0/1
CSSConditionRule1 memberwarpdom: Presenthappy-dom: Presentjsdom: Presentlinkedom: Missing
CSSMediaRule2 memberswarpdom: Presenthappy-dom: Presentjsdom: Presentlinkedom: Missing
CSSRule1 member added to CSSRule (defined in CSS Object Model (CSSOM))warpdom: 1/1happy-dom: 1/1jsdom: 1/1linkedom: 0/1
CSSSupportsRule1 memberwarpdom: Presenthappy-dom: Presentjsdom: Presentlinkedom: Missing

Probed 2026-10-19. Data: idl.json (CC BY 4.0).