<header class="container mb-2">
<nav class="navbar navbar-expand-lg navbar-dark navbar-transparent">
<div class="container-fluid">
<a class="navbar-brand" href="https://univers.kobold.city/" id="">Univers</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
</ul>
<ul class="navbar-nav my-2 my-lg-0">
<li class="nav-item">
<a class="nav-link" href="https://kobold.city">Retour</a>
</li>
</div>
</nav>
</header>