web2019/templates/shortcodes/layout_centered_img.html

<div class="{% if css %}{{ css }}{% else %}row d-flex align-items-center mt-5 mb-5{% endif %}">

  <div class="col-12 text-center">

    <img class="img-fluid" {% if popup %}data-popup="true" data-nsrc="{{ get_url(path=popup, cachebust=true) }}"{% endif %} src="{{ get_url(path=src) }}" alt="{{ alt }}">

  </div>

</div>