social_course-8.x-2.11/templates/course-section-navigation.html.twig

<div class="card__block card__block--list">
  {% for item in items %}
        <span {{ item.attributes.addClass('list-item') }}>
          <span class="list-item__text">
            {{ item.label }}
          </span>
      </span>
  {% endfor %}
</div>