ied." name="assert" />

  <style type="text/css"><![CDATA[
  div#overlapped-red-reference
  {
  background-color: red;
  height: 100px;
  position: absolute;
  width: 100px;
  z-index: -1;
  }

  div#overlapping-green-test
  {
  background-color: green;
  border: green solid 15px;
  border-collapse: separate;
  display: table;
  height: 50px;
  padding: 10px;
  width: 50px;
  }
  ]]></style>

 </head>

 <body>

  <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>

  <div id="o