= item.url | split: '/' %}
                                {% assign item_second_segment = item_url_segments[2] %}
                                {% if page_second_segment == item_second_segment %}
                                    {% assign class = 'active' %}
                                {% endif %}
                                
                                {% assign show_child = false %}
                                {% for child_item in site[collection.label] %}
                           