С
<div class="container d-flex">
<div class="row ">
<div class="row row-cols-md-3 ">
{% block sidebar %}
{% endblock %}
</div>
<div class="row row-cols-md-8 ">
{% block content %}
{% endblock %}
</div>
</div>
</div>
<div class="row ">
<div class="row row-cols-md-3 ">
{% block sidebar %}
{% endblock %}
</div>
<div class="row row-cols-md-8 ">
{% block content %}
{% endblock %}
</div>
</div>
</div>
