title: How to change the color of ngb-tabset type="pills"?
body: <p>I'm using angular 6 and ng-bootstrap. I want to change the background color of <code>&lt;ngb-tabset type="pills"&gt;</code></p>
  
  <pre><code>.nav-fill .nav-link.active {
      margin-top: -1px;
      border-top: 2px solid #20a8d8;
  }
  
  .nav-pills .nav-link.active, .nav-pills .show &gt; .nav-link {
      color: #fff;
      background-color: #20a8d8;
  }
  </code></pre>
  
  <p>I cannot override those in <code>component.scss</code> even if I use <code>!important</code> Those are inline styles. I don't know where they are located, searched the whole project couldn't find them.</p>