<!DOCTYPE html>
<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<html>
<head>
  <style>
    #container { display: -moz-box; }
    #highOrdinal {
      background: lime;
      height: 100px; width: 100px;
    }
  </style>
</head>
<body>
  <div id="container">
    <div id="highOrdinal"></div>
  </div>
</body>
</html>