app/views/layouts/_navigation.html.erb
<header>
<nav class="navbar navbar-expand-lg navbar-light bg-light fixed-top">
<div class="container">
<%= link_to Iqvoc.config["title"], localized_root_path, class: 'navbar-brand' %>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span> <%= t('txt.common.menu') %>
</button>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav">
<%= nav_items Iqvoc.navigation_items %>
</ul>
<%= render "layouts/controls" %>
</div>
</div>
</nav>
</header>