#import // https://drafts.csswg.org/css-animations-1/#animationevent [Exposed=Window] interface AnimationEvent : Event { constructor(CSSOMString type, optional AnimationEventInit animationEventInitDict = {}); readonly attribute CSSOMString animationName; readonly attribute double elapsedTime; readonly attribute CSSOMString pseudoElement; }; // https://drafts.csswg.org/css-animations-1/#dictdef-animationeventinit dictionary AnimationEventInit : EventInit { CSSOMString animationName = ""; double elapsedTime = 0.0; CSSOMString pseudoElement = ""; }; // https://drafts.csswg.org/css-animations/#interface-globaleventhandlers-idl partial interface mixin GlobalEventHandlers { attribute EventHandler onanimationcancel; attribute EventHandler onanimationend; attribute EventHandler onanimationiteration; attribute EventHandler onanimationstart; };