ul class="collapse " id="components" data-parent="#sidebar-menu">
                    <div class="sub-menu">
                      <li class="">
                        <a class="sidenav-item-link" href="alert.html">
                          <span class="nav-text">Alert</span>
                        </a>
                      </li>

                      <li class="">
                        <a class="sidenav-item-link" href="badge.html">
                          <span class="nav-text">Badge</span>
     