artisan-1.x-dev/components/local-tasks/local-tasks.twig

{% set attributes = attributes ?: create_attribute() %}
{% set secondary_tabs_attributes = secondary_tabs_attributes ?: create_attribute() %}

{% apply spaceless %}
  {% block primary_tabs %}
    {% if primary_tabs %}
      <ul {{ attributes.addClass(['nav', 'nav-tabs', 'mb-3']) }}>{{ primary_tabs }}</ul>
    {% endif %}
  {% endblock %}

  {% block secondary_tabs %}
    {% if secondary_tabs %}
      <ul {{ secondary_tabs_attributes.addClass(['nav', 'nav-pills']) }}>{{ secondary_tabs }}</ul>
    {% endif %}
  {% endblock %}
{% endapply %}