This tests to make sure that hitting return at the end of a header element breaks out of it. Below, a regular paragraph element should follow the h2 (it's OK if it contains styled elements that preserve the typing style inside the h2).

<h2 id="h2">foo</h2><div><font class="Apple-style-span" size="6"><span class="Apple-style-span" style="font-size: 21px;"><b><br></b></span></font></div>
