hidden="until-found"The hidden="until-found" attribute hides an element until it is found using the browser's find-in-page search or it is directly navigated to by following a URL fragment.htmlHTMLlimitedhttps://html.spec.whatwg.org/multipage/interaction.html#attr-hidden-until-foundhttps://developer.mozilla.org/docs/Web/API/Element/beforematch_eventapi.Element.beforematch_eventhtml.global_attributes.hidden.until-foundhttps://nowyoucanuse.com/features--hidden-until-found.html