If IE9 content example

gistfile1.html

<!--[if lt IE 9]>
  <div class="modal open">
    <div class="inner browser-not-supported">
      <div class="modal-display-area">
        <h2>You&#39;ll need to upgrade your browser to use our service</h2>
        <p>
          Unfortunately we can&#39;t support the browser you&#39;re using.
          We want you to have the best possible experience.
        </p>
        <p>
          <a href="http://whatbrowser.org/">Here&#39;s some information on your
          current browser and some possible alternatives.</a>
        </p>
      </div>
    </div>
  </div>
<![endif]-->