layout/reftests/margin-collapsing/dynamic-add-text-1.html


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<html>
  <head></head>
  <body onload="document.getElementById('a').nextSibling.data = 'x';">
    <div id="a" style="margin-bottom: 1em;">A</div> <div style="margin-top: 2em;">B</div>
  </body>
</html>