<nav id="navbar-main" class="navbar navbar-horizontal navbar-transparent navbar-main navbar-expand-lg navbar-light">
  <div class="container">
    <a class="navbar-brand" href="/">
      <img src="/static/assets/img/brand/parablu.png" alt="Parablu Logo">
    </a>
    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbar-collapse" aria-controls="navbar-collapse" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="navbar-collapse navbar-custom-collapse collapse" id="navbar-collapse">
      <div class="navbar-collapse-header">
        <div class="row">
          <div class="col-6 collapse-brand">
            <a href="/">
              <img src="/static/assets/img/brand/parablu.png">
            </a>
          </div>
        </div>
      </div>
    </div>
  </div>
</nav>