inserthorizontalrule-to-replace-selection-containing-comment.html (446B)
1 <head> 2 <meta charset="utf-8"> 3 <script> 4 addEventListener("DOMContentLoaded", () => { 5 document.execCommand("selectAll"); 6 document.designMode = "on"; 7 document.execCommand("insertHorizontalRule"); 8 }); 9 </script> 10 </head> 11 <body> 12 <audio></audio> 13 <ins contenteditable> 14 <q dir="ltr"> 15 <button>A</button> 16 <dialog dir="rtl" open> 17 <canvas></canvas> 18 <fieldset> 19 <!-- The following white-space is important --> 20 </fieldset></dialog></q></ins></body> 21 </html>