":"https://drafts.csswg.org/selectors-4/#invalid-pseudo"},
"be2d2b4c": {"dfnID":"be2d2b4c","dfnText":"SyntaxError","external":true,"refSections":[{"refs":[{"id":"ref-for-syntaxerror"}],"title":"2. Exposing custom element states"}],"url":"https://webidl.spec.whatwg.org/#syntaxerror"},
"cc123316": {"dfnID":"cc123316","dfnText":"pseudo-classes","external":true,"refSections":[{"refs":[{"id":"ref-for-x23"}],"title":"3. Selecting a custom element with a specific state"}],"url":"https://www.w3.org/TR/CSS21/selecto