<html>
  <head>
    <title>My Application</title>
    <script src="jquery.js"></script>
  </head>
  <body>
    <h2>Page</h2>
    <p>Some content</p>
    <div class="window"><a href="#" class="close">Close</a>
      <h2>Awesome</h2>
      <p>Now we can extend included blocks!</p>
    </div>
  </body>
</html>