/button>
      <button id="toc-toggle-close" class="toc-toggle__button"><span class="glyphicon glyphicon-remove"></span></button>
    </div>

    {% capture nav_title %}{{page.nav_title}}{% endcapture %}
    {% capture nav_title_link %}{{page.nav_title_link}}{% endcapture %}

    {% if nav_title != empty and nav_title_link != empty  %}
      <div class="nav-doc-collection-link">
        <a href="{{ site.baseurl }}{{ page.nav_title_link }}"><span class="glyphicon glyphicon-share-alt icon-flipped"></span> {{ 