s="sub-menu">
                      <li class="">
                        <a class="sidenav-item-link" href="chat.html">
                          <span class="nav-text">Chat</span>
                        </a>
                      </li>

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

                      <li class="">
  