2-ui/2-events/03-event-delegation/2-sliding-tree/source.view/index.html

<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
</head>
<body>

  <ul class="tree" id="tree">
    <li>Hewan
      <ul>
        <li>Mamalia
          <ul>
            <li>Sapi</li>
            <li>Keledai</li>
            <li>Anjing</li>
            <li>Harimau</li>
          </ul>
        </li>
        <li>Lain
          <ul>
            <li>Ular</li>
            <li>Burung</li>
            <li>Kadal</li>
          </ul>
        </li>
      </ul>
    </li>
    <li>Ikan
      <ul>
        <li>Akuarium
          <ul>
            <li>Gupi (ikan seribu)</li>
            <li>Ikan bidadari</li>
          </ul>
        </li>
        <li>Laut
          <ul>
            <li>Trout laut</li>
          </ul>
        </li>
      </ul>
    </li>
  </ul>

</body>
</html>