title: Jade Parser: "Anonymous blocks are not allowed unless they are part of a mixin" Error
body: <p>I've got this error:</p>
  
  <blockquote>
    <p><em>"Anonymous blocks are not allowed unless they are part of a mixin"</em></p>
  </blockquote>
  
  <p>with this Jade file:</p>
  
  <pre><code>html
      body
          style(type='text/css', media='screen')
          div#div_name
              display: block
              height: 300px
  </code></pre>
  
  <p>obviously the problem is with <strong>display: block</strong> - any ideas \ solutions?</p>