1<html>
2<body>
3Reload page and mouse click quickly in the black box.
4<style>
5::-webkit-scrollbar { width: 1000; }
6</style>
7<script>setTimeout("try { document.body.offsetTop; child = document.body; child.parentNode.removeChild(child); } catch(e) {}", 100);</script>
8<svg>
9</svg>
10</body>
11</html>
12