{% comment %} <div class="d-flex flex-shrink-1">
  <a href="{{ add_url }}" type="button" class="btn btn-sm btn-success">
    <i class="mdi mdi-plus-thick"></i>
    &nbsp;Add
  </a>
</div> {% endcomment %}
<a href="{{ add_url }}" type="button" class="btn btn-sm btn-success">
  <i class="mdi mdi-plus-thick"></i> Add
</a>