layout/reftests/margin-collapsing/block-negative-2b-dyn2.html

   1 <!DOCTYPE html>
   2 <html class="reftest-wait">
   3 <head>
   4 <style type="text/css">
   5 #a {
   6  height: 20px;
   7  background-color: green;
   8  margin-bottom: 0;
   9 }
  10 #b {
  11  height: 20px;
  12  background-color: blue;
  13 }
  14 </style>
  15 <script type="text/javascript">
  16 function test() {
  17  document.getElementById('a').style.marginBottom = '-20px';
  18  document.documentElement.removeAttribute('class');
  19 }
  20 document.addEventListener('MozReftestInvalidate', test);
  21 </script>
  22 </head>
  23 <body>
  24 <div id="a"></div>
  25 <div id="b"></div>
  26 </body>
  27 </html>