pelican-jdr/static/includes/_headerbar.html

<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://pelicanjdr.kazhnuz.space/" id="">Pélican</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>
      </ul>
    </div>
    </div>
  </nav>
</header>