layout/reftests/margin-collapsing/block-xhtml-html-1b.xhtml


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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
 <style type="text/css">
 html, body {
  margin: 0; padding: 0;
 }
 html {
  background-color: white;
  margin: 20px 0;
 }
 div {
  background-color: green;
  margin: 10px 0;
  height: 100px;
 }
 </style>
</head>
<body>
<div></div>
</body>
</html>