< div class="wrapper-fluid wrapper-navbar" id="wrapper-navbar"> < a class="skip-link screen-reader-text sr-only" href="#content"> Skip to content < /a> < nav class="navbar navbar-toggleable-md navbar-inverse bg-primary"> < button class="navbar-toggler" type="button" data - toggle="collapse" data - target="#navbarNavDropdown" aria - controls="navbarNavDropdown" aria - expanded="false" aria - label="Toggle navigation"> < span class="navbar-toggler-icon"> < /span> < /button> < /nav> < /div>