polymer_app_layout.behaviors/HtmlCollection-class.html#instance-properties">Properties</a></li>
      <li><a href="polymer_app_layout.behaviors/HtmlCollection/first.html">first</a>
</li>
      <li>isEmpty
</li>
      <li>isNotEmpty
</li>
      <li>iterator
</li>
      <li><a href="polymer_app_layout.behaviors/HtmlCollection/last.html">last</a>
</li>
      <li><a href="polymer_app_layout.behaviors/HtmlCollection/length.html">length</a>
</li>
      <li>length
</li>
      <li>reversed
</li>
      <li><a href="