Definition
HTML Standard defines HTMLOrSVGOrMathMLElement
interface mixin HTMLOrSVGOrMathMLElement {
[SameObject] readonly attribute DOMStringMap dataset;
attribute DOMString nonce; // intentionally no [CEReactions]
[CEReactions, Reflect] attribute boolean autofocus;
[CEReactions, ReflectSetter] attribute long tabIndex;
undefined focus(optional FocusOptions options = {});
undefined blur();
};