tabs_item_icons.year -%}
        </ul>
      </div>
      {%comment-%} your new tab
      <div id="tab4" class="tab-pane link-buttons">
          tab3 content
      </div>
      {%-endcomment-%}
    </div>
    <ul class="nav nav-tabs">
      <li><a href="#tab1" data-toggle="tab"><i class="{{ 'fa-fw ' }}{{ site.data.conf.posts.post_query_tabs_category_tab_icon }}" aria-hidden="true"></i>{{ site.data.lang[lng].post-list.upside_down_tabs.tab.categories }}</a></li>
      <li><a href="#tab2" data-toggle="tab"><i