third_party/WebKit/LayoutTests/fast/dom/css-mediarule-insertRule-update.html

   1 <!DOCTYPE html>
   2
   3 <html>
   4     <head>
   5         <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
   6         <title>CSSMediaRule deleteRule test</title>
   7         <style id="style1">
   8             @media all {
   9                 p { color: red; }
  10             }
  11         </style>
  12         <script>
  13             function test() {
  14                 var styleSheet = document.getElementById('style1').sheet;
  15                 var mediaRule = styleSheet.cssRules[0];
  16
  17                 mediaRule.insertRule("#test { color: green; }", mediaRule.cssRules.length);
  18             }
  19         </script>
  20     </head>
  21     <body onload="test();">
  22         <p id="test">This line should be green.</p>
  23     </body>
  24 </html>