<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-light bg-light"> <a class="navbar-brand" href="#">Navbar</a> <button class="navbar-toggler navbar-toggler-right collapsed" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"> <span></span> <span></span> <span></span> </button> <div class="collapse navbar-collapse" id="navbarSupportedContent"> <ul class="navbar-nav mr-auto"> <li class="nav-item active"> <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link</a> </li> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Dropdown </a> <div class="dropdown-menu" aria-labelledby="navbarDropdown"> <a class="dropdown-item" href="#">Action</a> <a class="dropdown-item" href="#">Another action</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="#">Something else here</a> </div> </li> <li class="nav-item"> <a class="nav-link disabled" href="#">Disabled</a> </li> </ul> <form class="form-inline my-2 my-lg-0"> <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search"> <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button> </form> </div> </nav> <div class="container"> <div class="row"> <h2>Create your snippet's HTML, CSS and Javascript in the editor tabs</h2> </div> </div>

body { font-family: 'Lato',sans-serif; } .navbar-toggler:focus, .navbar-toggler:active { outline: 0; } .navbar-toggler span { display: block; background-color: #444; height: 3px; width: 25px; margin-top: 4px; margin-bottom: 4px; -webkit-transform: rotate(0deg); -moz-transform: rotate(0deg); -o-transform: rotate(0deg); transform: rotate(0deg); position: relative; right: 0; opacity: 1; } .navbar-toggler span:nth-child(1), .navbar-toggler span:nth-child(3) { -webkit-transition: transform .35s ease-in-out; -moz-transition: transform .35s ease-in-out; -o-transition: transform .35s ease-in-out; transition: transform .35s ease-in-out; } .navbar-toggler:not(.collapsed) span:nth-child(1) { position: absolute; right: 29px; top: 23px; -webkit-transform: rotate(135deg); -moz-transform: rotate(135deg); -o-transform: rotate(135deg); transform: rotate(135deg); opacity: 0.9; } .navbar-toggler:not(.collapsed) span:nth-child(2) { height: 12px; visibility: hidden; background-color: transparent; } .navbar-toggler:not(.collapsed) span:nth-child(3) { position: absolute; right: 29px; top: 23px; -webkit-transform: rotate(-135deg); -moz-transform: rotate(-135deg); -o-transform: rotate(-135deg); transform: rotate(-135deg); opacity: 0.9; }