layout/reftests/margin-collapsing/block-first-child-3-dyn.html

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