title: HTML5 valid itemscope
body: <p>I am marking up my content with schema.org microformats and am wondering about the itemscope attribute. The example given on <a href="http://schema.org/docs/gs.html" rel="nofollow">http://schema.org/docs/gs.html</a> is </p>
  
  <pre><code>&lt;div itemscope itemtype="http://schema.org/Movie"&gt;
  </code></pre>
  
  <p>Is this valid HTML5? I thought attributes needed values, something like</p>
  
  <pre><code>&lt;div itemscope="itemscope" itemtype="http://schema.org/Movie"&gt;
  </code></pre>