css_pseudo_4 library Null safety

CSS Pseudo-Elements Module Level 4

https://drafts.csswg.org/css-pseudo-4/

Classes

CSSPseudoElement
Experimental This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The interface represents a pseudo-element that may be the target of an event or animated using the Web Animations API. Instances of this interface may be obtained by calling Element.pseudo().