<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title>XHTML</title>
</head>
<body>

  <form method="POST" enctype="multipart/form-data">
    <input name="file" id="file" type="file" />
    <input name="submit" id="submit" type="submit" />
  </form>

<p id="self-closed" />Here is some content that should not be in the previous p tag

</body>
</html>