Thu, 22 Jan 2015 13:21:57 +0100
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
1 <!DOCTYPE html>
2 <html>
3 <head>
4 <script type="text/javascript">
6 function boom()
7 {
8 window.addEventListener("DOMSubtreeModified", function(){}, false);
10 var span = document.createElement("span");
11 document.body.appendChild(span);
12 }
14 </script>
16 <style type="text/css">
18 span:before { content: '0'; }
19 span:after { content: '1'; }
21 </style>
22 </head>
24 <body onload="boom();"></body>
25 </html>