="col-sm-3 col-4" id="myScrollspy">
        <ul class="nav nav-pills flex-column">
          <li class="nav-item">
            <a class="nav-link active" href="#basic">Most basic shape</a>
          </li>
          <li class="nav-item">
            <a class="nav-link" href="#rectangle">Rectangle</a>
          </li>
          <li class="nav-item">
            <a class="nav-link" href="#publication">Publication</a>
          </li>
          <li class="nav-item">
            <a class="nav-link" href="#dark">Da