{% macro nav_but(url, bactive , value, txt) %}
<li class="nav-item mx-2">
            <button onclick="document.location='{{ url }}'" class="btn btn-secondary btn-block 
            {% if bactive == value %}
            active
            {% endif %} 
            " 
            style="width: 120px;" type="button" data-bs-toggle="dropdown" aria-expanded="false">
              {% if bactive == value %}
              <B>{{ txt }}</B>
               {% else %} 
               {{ txt }}
               {% endif %} 
              </button>
  </li>
{% endmacro %}