move-editing-host-to-subdocument-when-textarea-has-focus.html (341B)
1 <script> 2 addEventListener("DOMContentLoaded", () => { 3 document.querySelector("iframe").contentDocument.body.appendChild( 4 document.querySelector("span") 5 ); 6 document.documentElement.style.display = "none"; 7 }) 8 </script> 9 <hgroup> 10 <audio controls> 11 </audio> 12 <iframe></iframe> 13 <span contenteditable></span> 14 </hgroup> 15 <textarea autofocus>