title: Bootstrap modal not showing. Only background becomes black
body: <p>I am using bootstrap modal. The triggrer is like this:</p>
  
  <pre><code>&lt;a id="add-feed-button"  role="button" data-toggle="modal" href="#add-feed-form" class="btn pull-right btn-success"   style="margin-left:5px; margin-top:-4px;"&gt;Add new&lt;/a&gt;
  </code></pre>
  
  <p>and my modal:</p>
  
  <pre><code> &lt;div id="add-feed-form" class="form-feed modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true"&gt;
  this is modal.
  &lt;/div&gt; 
  </code></pre>
  
  <p>Problem is that only the backdrop becomes black but no modal appears.</p>
  
  <p>I have included bootstrap.js and also bootstrap.min.css. I have used modals quite a times but this is a strange problem.</p>