{% set class = "md-tabs" %} {% if page.ancestors | length > 0 %} {% set class = "md-tabs md-tabs--active" %} {% endif %} <nav class="{{ class }}" data-md-component="tabs"> <div class="md-tabs__inner md-grid"> <ul class="md-tabs__list"> {% for nav_item in nav %} {% include "partials/tabs-item.html" %} {% endfor %} </ul> </div> </nav>