title: Style disabled form control with class
body: <p>I have an input button with a style, I want to alter the style if it is disabled.  This works when disabled is set like so <code>disabled="disabled"</code> but if disabled is set simply by writing <code>disabled</code> it doesn't work with the class specifier as well, am I constructing the CSS wrong?</p>
  
  <p>So to clarify <code>input[disabled="disabled"].awesome</code> works properly, <code>input.awesome.disabled</code> does not.</p>
  
  <p>I am testing with the following HTML:</p>
  
  <pre><code>&lt;input class="awesome" disabled /&gt;
  &lt;input class="awesome" disabled="disabled" /&gt;
  </code></pre>
  
  <p>CSS:</p>
  
  <pre><code>input[disabled="disabled"].awesome , input.awesome.disabled
  {
      color: #aaa;;
      background-color: #eee;
  }
  </code></pre>
  
  <p>If I write the selector like so, it works (but for all buttons)</p>
  
  <pre><code>input[disabled="disabled"], input.disabled { /**/ }
  </code></pre>