{% set _overview_tag = overview_tag|default('section') %}
{#
  Using `header` inside a `div` causes pointless "banner" landmarks in
  the VoiceOver rotor. As a result, we set the default header element
  to `div` if the `overview_tag` is anything but `article` or `section`.
#}
{% set _is_sectioning = _overview_tag in ['article', 'section'] %}
{% set _default_header_tag = _is_sectioning ? 'header' : 'div' %}
{% set _header_tag_name = header_tag_name|default(_default_header_tag) %}

<{{ _overview_tag }}
  class="o-overview"
  {% if labelledby_id %}aria-labelledby="{{labelledby_id}}"{% endif %}
>
  <{{ _header_tag_name }} class="o-overview__header">
    {% block header %}{% endblock %}
  </{{ _header_tag_name }}>
  <div class="o-overview__actions">
    {% block actions %}{% endblock %}
  </div>
  <div class="o-overview__content">
    {% block content %}{% endblock %}
  </div>
</{{ _overview_tag }}>