inserthorizontalrule-with-2-selection-ranges-and-one-is-outside-body.html (509B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <script> 6 document.addEventListener('DOMContentLoaded', () => { 7 const form = document.createElement("form"); 8 const range = new Range(); 9 document.documentElement.contentEditable = true; 10 document.execCommand("formatBlock", false, "h3"); 11 document.documentElement.appendChild(form); 12 range.setStartBefore(form); 13 getSelection().addRange(range); 14 range.selectNode(form); 15 document.execCommand("insertHorizontalRule"); 16 }); 17 </script> 18 </head> 19 </html>