display_builder-1.0.x-dev/components/layer/layer.twig

{% set modifier = children ? 'component' : 'block' %}
<div{{ attributes.addClass('db-layer').addClass('db-layer--' ~ modifier) }}>
  <p class="db-layer__title">{{ title }}</p>
  {% if children %}
  <div class="db-layer__children">
  {{ children }}
  </div>
  {% endif %}
</div>