            <core-item label="/first"><a href="#/first"></a></core-item>
            <core-item label="/second"><a href="#/second"></a></core-item>
            <core-item label="/page/123"><a href="#/page/123"></a></core-item>
            <core-item label="/page/456"><a href="#/page/456"></a></core-item>
          </core-header-panel>
          <div tool>
            <content select=".title"></content>
          </div>
          <div class="content">
            <p>Test the different <code>app-route</code> 