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Coverage / css-transitions-2

CSS Transitions Module Level 2

Specification: drafts.csswg.org/css-transitions-2/. 2 interfaces defined here, 2 members exposed on Window (Web IDL). Group: Rendering and graphics.

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 engine0% (0 of 2)0 of 2
happy-dom21.0.30% (0 of 2)0 of 2
jsdom30.1.30% (0 of 2)0 of 2
linkedom0.18.130% (0 of 2)0 of 2
3 of 3 interfaces
CSSStartingStyleRule0 memberswarpdom: Missinghappy-dom: Missingjsdom: Missinglinkedom: Missing
CSSTransition1 memberwarpdom: Missinghappy-dom: Missingjsdom: Missinglinkedom: Missing
TransitionEvent1 member added to TransitionEvent (defined in CSS Transitions Module Level 1)warpdom: 0/1happy-dom: 0/1jsdom: 0/1linkedom: 0/1

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