title: How to add class to angular component in storybook?
body: <p>I defined a component &quot;test-component-wrapper&quot; with viewencapsulation setted to none. Its template has only an</p>
  <pre><code>&lt;ng-content&gt;&lt;/ng-content&gt;&gt; 
  </code></pre>
  <p>I defined also a &quot;test-component-item&quot; with this template</p>
  <pre><code>&lt;div&gt;Some text&lt;/div&gt;
  </code></pre>
  <p>In storybook I tried to create a story with this template</p>
  <pre><code>&lt;test-component-wrapper&gt;
   &lt;test-component-item class=&quot;testClass&quot;&gt;
   &lt;/test-component-item&gt;
  &lt;/test-component-wrapper&gt;
  </code></pre>
  <p>But it doesn't work...dom is not rendered. If I add this story without class it works. I tried so to it directly in angular project and class is added. How can I solve?</p>