per-icon-button>
            </a>
          </app-toolbar>

          <!-- bottom toolbar -->
          <app-toolbar class="title-toolbar main-title-toolbar">
            <div class="title">ZUPERK&Uuml;LBLOG</div>
          </app-toolbar>

        </app-header>

        <!-- list/detail pages -->
        <iron-pages selected="[[pageData.page]]" attr-for-selected="name">

          <!-- list page -->
          <iron-pages name="list" selected="[[categoryData.category]]" attr-for-selected="name">

           