uswds-8.x-2.1-rc1/templates/system/block/breadcrumb.html.twig

{#
/**
 * @file
 * USWDS theme implementation for a breadcrumb trail.
 */
#}
{% if breadcrumb %}
<h2 id="system-breadcrumb" class="visually-hidden">{{ 'Breadcrumb'|t }}</h2>
<ol class="add-list-reset uswds-breadcrumbs uswds-horizontal-list">
{% for item in breadcrumb %}
  <li>
    {% if item.url %}
      <a href="{{ item.url }}">{{ item.text }}</a>
    {% else %}
      {{ item.text }}
    {% endif %}
  </li>
{% endfor %}
</ol>
{% endif %}