<div>

<nav class="navbar navbar-light navbar-expand-md navigation-clean">
    <a href="{{ site.baseurl }}/" class="navbar-brand">{{site.title}}</a>
    <button data-toggle="collapse" data-target="#navcol-1" class="navbar-toggler">
      <span class="sr-only">Toggle navigation</span>
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse"
      id="navcol-1">
      <ul class="nav navbar-nav ml-auto">
        <li role="presentation" class="nav-item"><a href="" role="button" class="nav-link" data-toggle="modal" data-target="#aboutModal">About</a></li>
        <li role="presentation" class="nav-item"><a href="" role="button" class="nav-link" data-toggle="modal" data-target="#contactModal">Contact</a></li>
      </ul>
    </div>
</nav>

</div>