website/_src/_includes/menu-main.html

<nav class="menu menu--main">
    <div class="row">
        <div class="menu__logo">
            <a class="menu__link menu__link--logo" href="/">
                <svg class="logo" aria-labelledby="title">
                    <title>Logo IPDB</title>
                    <use xlink:href="/assets/img/sprite.svg#logo"></use>
                </svg>
            </a>
        </div>

        <div class="menu__items">

            <div class="menu-overflow">

                {% for link in site.data.menus.main %}
                {% assign active = nil %}
                {% if page.url contains link.url %}
                {% assign active = 'active' %}
                {% endif %}

                <a class="menu__link {{ active }}" href="{{ link.url }}">{{ link.title }}</a>
                {% endfor %}

            </div>

        </div>
    </div>
</nav>