<div class=“header”>

<div class="header-content">
    <ul class="header-nav" role="navigation">

        {% include nav_bar_category.html url=site.url name="home" %}

        {% for collection in site.collections %}
            {% assign category = collection.label %}
            {% assign url = category | absolute_url %}
            {% if category == "posts" %}

            {% else %}

            {% include nav_bar_category.html url=url name=category %}

            {% endif %}

        {% endfor %}
    </ul>
</div>

</div>