css_animations_1 library Null safety

CSS Animations Level 1

https://drafts.csswg.org/css-animations/

Classes

AnimationEvent
Experimental This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The interface represents events providing information related to animations.
AnimationEventInit
CSSKeyframeRule
The interface describes an object representing a set of styles for a given keyframe. It corresponds to the contents of a single keyframe of a @keyframes at-rule.
CSSKeyframesRule
The interface describes an object representing a complete set of keyframes for a CSS animation. It corresponds to the contents of a whole @keyframes at-rule.