title: Multiple "style" attributes in a "span" tag: what's supposed to happen?
body: <p>Consider the following HTML fragment with two <code>style</code> attributes:</p>
  
  <pre><code>&lt;span style="color:blue" style="font-style:italic"&gt;Test&lt;/span&gt;
  </code></pre>
  
  <p>In Opera 12.16 and Chrome 40, it shows up as blue non-italic text, while Internet Explorer 9 shows blue italic text.  What, if anything, does the standard say is supposed to show up?</p>