Django Bootstrap Messages

base.html

      {% if messages %}
        {% for message in messages %}
        <div class="alert{% if message.tags %}{% if message.tags == "error" %} alert-danger{% else %} alert-{{ message.tags }}{% endif %}{% endif %}" role="alert">
          <button type="button" class="close" data-dismiss="alert" aria-label="Close">
            <span aria-hidden="true">&times;</span>
          </button>
          {{ message }}
        </div>
        {% endfor %}
      {% endif %}