title: FontAwesome icon showing as black box. What CSS is needed to display icon?
body: <p>Pretty sure I am being dim but how do I get the icon to display? Is certain CSS needed and if so what would that be?</p>
  
  <pre><code>&lt;html&gt;
  &lt;head&gt;
      &lt;link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet"&gt;
  &lt;/head&gt;
  &lt;body&gt;
      &lt;i class="fa fa-angle-double-down"&gt;&lt;/i&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>