title: IE not styling HTML5 tags (with shiv)
body: <p>I'm trying to style a <code>&lt;header&gt;</code> and it's not working in IE.  I'm using Modernizr, but i've tried the shiv by itself.</p>
  
  <p>Example code</p>
  
  <pre><code>&lt;section&gt;
    &lt;header&gt;
      &lt;h1&gt;Title&lt;/h1&gt;
    &lt;/header&gt;
    &lt;p&gt;Body&lt;/p&gt;
  &lt;/section&gt;
  </code></pre>
  
  <p>Styled with:</p>
  
  <pre><code>section {
      border: 2px dotted black;
      padding: 0.25em;
  }
  
  header h1 {
      background-color: #ccc;
      text-align: center;
      margin: 0;
  }
  </code></pre>
  
  <p>I expect a border around the header and section content, but instead there is just an '[' looking border and the header is beneath it.</p>
  
  <p>Whats going wrong?</p>