<header>
...
</header>
<nav class="subnav">
<ul class="nav">
<li class="nav-item">
<a class="nav-link active" href="#">Dashboard</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Management</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Cloud</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Tenants</a>
</li>
</ul>
</nav>