"fas fa-angle-down"></i> </span>
            </a>
          </header>
          <div class="card-content">
            <div class="content"><p>My Awesome hidden content</p></div>
          </div>
        </div>
      </nwb-doc-preview>
      <br />
      <p>Opened by default use <code>nwbAnimatedCardOpened</code> attribute</p>
      <nwb-doc-preview [content]="sample2">
        <div nwbAnimatedCardOpened class="card">
          <header class="card-header">
            <p class="card-header-title">Click me !