<table class="table table-borderless shadow">
  {% if header %}<tr>
    <th colspan="{{ cols_number }}" class="thead-dark text-center">{{ header }}</th>
  </tr>{% endif %}
  {% for row in rows %}<tr class="d-table-row">
      {% for object in row %}<td width="50%" class="d-table-cell">
        {% if object %}{% include cell_template with object=object %}{%endif%}
      </td>
      {% endfor %}
    </tr>
    {% endfor %}
</table>
