  {% block sidebar %}
            <div class="col-md-3 left_col {% block sidebar_class %} {% endblock sidebar_class %}">
              {% include "site_template/sidebar.html" %}
            </div>
          {% endblock sidebar %}

          {% block top_navigation %}
            <div class="top_nav">
              {% include "site_template/top_navigation.html" %}
            </div>
          {% endblock top_navigation %}

          {% block content %}
            <!-- {{ content }} -->
          {% endblock