an>
                        </a>
                        <div class="dropend">
                          <a class="dropdown-item dropdown-toggle" href="#sidebar-authentication" data-bs-toggle="dropdown" data-bs-auto-close="outside" role="button" aria-expanded="false" >
                            Authentication
                          </a>
                          <div class="dropdown-menu">
                            <a href="./sign-in.html" class="dropdown-item">
                              Sign in
