title: firebug returns syntax error in doctype?
body: <p>Why does Firebug return an error in my doctype?</p>
  
  <pre><code>&lt;!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
  "http://www.w3.org/TR/html4/strict.dtd"&gt; 
  </code></pre>
  
  <h1>error</h1>
  
  <pre><code>syntax error
  &lt;!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
  </code></pre>
  
  <h1>source code</h1>
  
  <pre><code>&lt;!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
   "http://www.w3.org/TR/html4/strict.dtd"&gt;
  &lt;html&gt;
      &lt;head&gt;
  .....
  </code></pre>