dropdown menu bootstrap
<div class="collapse navbar-collapse"> <ul class="navbar-nav mr-auto"> <li class="nav-item"> <a class="nav-link" href="#">Clientes</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Fornecedores</a> </li> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#" data-toggle="dropdown"> Veículos </a> <div class="dropdown-menu"> <a class="dropdown-item" href="#">Carros</a> <a class="dropdown-item" href="#">Marcas</a> <a class="dropdown-item" href="#">Modelos</a> </div> </li> </ul> </div>
