uswds_base-8.x-2.0-alpha1/templates/layout/region--header.html.twig

{#
/**
 * @file
 * Theme override to display a region.
 *
 * Available variables:
 * - content: The content for this region, typically blocks.
 * - attributes: HTML attributes for the region <div>.
 * - region: The name of the region variable as defined in the theme's
 *   .info.yml file.
 *
 * @see template_preprocess_region_header()
 */
#}
{%
  set classes = [
  'region',
  'region-' ~ region|clean_class,
  'usa-navbar',
]
%}
{% if content %}
<div{{ attributes.addClass(classes) }} role="banner">
    {{ content }}
</div>
{% endif %}