title: In Angular 2, is it possible to fadeIn / fadeout instead of [hidden='xxx]?
body: <p>In Angular 2, is it possible to fadeIn / fadeout instead of [hidden='xxx]?</p>
  
  <p>I have snippet of </p>
  
  <pre><code>&lt;div  [hidden]="visible"&gt;
  </code></pre>
  
  <p>and want it to fade out on visible change...</p>
  
  <p>tx</p>
  
  <p>Sean</p>