<?xml version="1.0" encoding="UTF-8"?>
<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <style>
      #container {
        width: 100px;
        height: 100px;
        background: lime;
      }
    </style>
  </head>
  <body>
    <div id="container"></div>
  </body>
</html>