  <ul class="nav">
            <li class="nav-item"> <a class="nav-link" href="#">Item</a> </li>
            <li class="nav-item"> <a class="nav-link" href="#">Item</a> </li>
            <li class="nav-item"> <a href="#" class="nav-link">Item</a> </li>
            <li class="nav-item"> <a class="nav-link disabled" href="#">Disabled</a> </li>
          </ul>
          <ul class="nav nav-pills my-4">
            <li class="nav-item"> <a href="#" class="nav-link active">Nav pills</a> </li>
            <li clas