<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> <nav class="navbar navbar-expand-lg navbar-dark bg-primary"> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#main_nav"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="main_nav"> <ul class="navbar-nav"> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#" data-toggle="dropdown"> Mega submenu </a> <ul class="dropdown-menu"> <li><a class="dropdown-item" href="#"> Dropdown item 1 </a></li> <li><a class="dropdown-item" href="#"> Dropdown item 2 </a></li> <li><a class="dropdown-item" href="#"> Dropdown item 3 </a></li> <li class="has-submenu"> <a class="dropdown-item dropdown-toggle" href="#"> Dropdown item 4 </a> <div class="megasubmenu dropdown-menu"> <div class="row"> <div class="col-6"> <h6 class="title">Title Menu One</h6> <ul class="list-unstyled"> <li><a href="#">Custom Menu</a></li> <li><a href="#">Custom Menu</a></li> <li><a href="#">Custom Menu</a></li> <li><a href="#">Custom Menu</a></li> <li><a href="#">Custom Menu</a></li> </ul> </div><!-- end col-3 --> <div class="col-6"> <h6 class="title">Title Menu Two</h6> <ul class="list-unstyled"> <li><a href="#">Custom Menu</a></li> <li><a href="#">Custom Menu</a></li> <li><a href="#">Custom Menu</a></li> <li><a href="#">Custom Menu</a></li> </ul> </div><!-- end col-3 --> </div><!-- end row --> </div> </li> <li class="has-submenu"> <a class="dropdown-item dropdown-toggle" href="#"> Dropdown item 5 </a> <div class="megasubmenu dropdown-menu"> Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. </div> </li> <li><a class="dropdown-item" href="#"> Dropdown item 6 </a></li> </ul> </li> <li class="nav-item"> <a class="nav-link" href="#">Menu item </a> </li> <li class="nav-item"><a class="nav-link" href="#"> About </a></li> <li class="nav-item"><a class="nav-link" href="#"> Services </a></li> </ul> <ul class="navbar-nav ml-auto"> <li class="nav-item"><a class="nav-link" href="#"> Menu item </a></li> <li class="nav-item"><a class="nav-link" href="#"> Menu item </a></li> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#" data-toggle="dropdown"> Dropdown right </a> <ul class="dropdown-menu dropdown-menu-right"> <li><a class="dropdown-item" href="#"> Submenu item 1</a></li> <li><a class="dropdown-item" href="#"> Submenu item 2 </a></li> </ul> </li> </ul> </div> <!-- navbar-collapse.// --> </nav>

.megasubmenu{ padding: 20px; } @media (min-width: 992px){ .dropdown-menu .dropdown-toggle:after{ border-top: .3em solid transparent; border-right: 0; border-bottom: .3em solid transparent; border-left: .3em solid; } .dropdown-menu{ margin:0; } .megasubmenu{ left:100%; top:0; min-height: 100%; min-width:500px; } .dropdown-menu > li:hover .megasubmenu{ display: block; } }

$(document).ready(function() { // jQuery code //////////////////////// Prevent closing from click inside dropdown $(document).on('click', '.dropdown-menu', function (e) { e.stopPropagation(); }); if ($(window).width() < 992) { $('.has-submenu a').click(function(e){ e.preventDefault(); $(this).next('.megasubmenu').toggle(); $('.dropdown').on('hide.bs.dropdown', function () { $(this).find('.megasubmenu').hide(); }) }); } }); // jquery end