title: AngularJS: Current tab lost focus (background color) after I clicked somewhere else
body: <p>I have 2 tabs:</p>
  
  <pre><code>&lt;div class="container-fluid" ng-disabled="isLoading"&gt;    
  &lt;!--Tab Menu Start --&gt;    
  &lt;tabset&gt;        
      &lt;tab heading="Accounts" href="#portlet_tab1" data-toggle="tab"&gt; &lt;/tab&gt;        
      &lt;tab heading="Payment" href="#portlet_tab2" data-toggle="tab"&gt; &lt;/tab&gt;        
  &lt;/tabset&gt;    
  &lt;/div&gt;
  </code></pre>
  
  <p>The page's background color is white. When I click <code>Accounts</code>, the tab is focused, with a text background color change to FF0000. Same rule applies to the <code>Payment</code> tab as well. However when I click somewhere else, let's say a blank space in the page, the background color underneath <code>Accounts</code> is gone. It turns white again. How to make the current tab to be able to maintain the unique backgroud color of FF0000?</p>