<div class="row u-equal-height u-clearfix">
{% for article in articles %}
  {% if (loop.index - 1) % 3 == 0 and loop.index > 1 %}
    </div>
    <div class="row u-equal-height u-clearfix">
  {% endif %}
  {% include 'blog/blog-card.html' %}
{% endfor %}
</div>