socialbase-1.1.0/templates/layout/region.html.twig

{%
  set classes = [
    'region--' ~ region|clean_class,
    region == 'content_top' ? 'row',
    region == 'content_bottom' ? 'row',
  ]
%}
{% if content %}
  <div{{ attributes.addClass(classes) }}>
    {{ content }}
  </div>
{% endif %}