api-generator-templates/Web-documentation/blocks/secondary-menu.html.twig

<li {%- if menu.active %} class="active" {%- endif -%}>
    <a href="{{ first(menu.items).path }}">{{ menuTitle }}</a>
    <ul class="child">
        {% for item in menu.items %}
        <li {%- if item.active %} class="active" {%- endif -%}><a href="{{ item.path }}">{{ item.title }}</a></li>
        {% endfor %}
    </ul>
</li>