<div class="container mt-5">
    <nav class="navbar navbar-expand-sm flex-column flex-sm-row p-0">
        <a class="navbar-brand mr-sm-auto" href="{{ .Site.BaseURL }}">{{ .Site.Title }}</a>
        <div class="navbar-nav flex-row">
        {{ $navbar_len := len .Site.Menus.navbar }}
        {{ range $i, $nav_item := .Site.Menus.navbar }}
            <a class="nav-item nav-link" href="{{ $nav_item.URL | relURL }}">{{ $nav_item.Name }}</a>
            {{ if ne (add $i 1) $navbar_len }}
                <span class="nav-item navbar-text mx-1">/</span>
            {{ end }}
        {{ end }}
        </div>
    </nav>
</div>
<hr>