title: How to give transparent background to bootstrap list group?
body: <p>I want to give a transparent background to a list group with only top border. Right now I get the default white background.</p>
  
  <pre><code> &lt;ul class="list-group"&gt;
       &lt;li class="list-group-item"&gt;Cras justo odio&lt;/li&gt;
       &lt;li class="list-group-item"&gt;Dapibus ac facilisis in&lt;/li&gt;
       &lt;li class="list-group-item"&gt;Morbi leo risus&lt;/li&gt;
       &lt;li class="list-group-item"&gt;Porta ac consectetur ac&lt;/li&gt;
       &lt;li class="list-group-item"&gt;Vestibulum at eros&lt;/li&gt;
   &lt;/ul&gt;
  </code></pre>