material_base-8.x-2.x-dev/templates/layout/region--footer.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()
 */
#}
{% set classes = [
    'region',
    'region-' ~ region|clean_class,
    'page-footer',
    'footer',
    footer_style ? 'footer--' ~ footer_style,
] %}

{% if content %}
  <footer{{ attributes.addClass(classes).setAttribute('role', 'contentinfo') }}>
    <div class="footer__container">
      <div class="footer__section">
        {{ content }}
      </div>
    </div>
  </footer>
{% endif %}