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 %}

                <a class="button button--small button--primary" href="{{ site.signup.link }}">{{ site.signup.button_short }}</a>
                <a class="button button--small" href="{{ site.login.link }}">{{ site.login.button }}</a>

            </div>

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