Markup<body class="drawer drawer--left"> <header role="banner"> <button type="button" class="drawer-toggle drawer-hamburger"> <span class="sr-only">toggle navigation</span> <span class="drawer-hamburger-icon"></span> </button> <nav class="drawer-nav" role="navigation"> <ul class="drawer-menu"> <li><a class="drawer-brand" href="#">Brand</a></li> <li><a class="drawer-menu-item" href="#">Nav1</a></li