#offcanvas-menu{position:fixed;top:0;right:-420px;width:400px;max-width:90%;height:100vh;background:#111;z-index:99999;transition:right .4s ease;overflow-y:auto;box-shadow:-8px 0 20px rgba(0,0,0,.3)}#offcanvas-menu.open{right:0}#menu-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.55);opacity:0;visibility:hidden;transition:.4s;z-index:99998}#menu-overlay.open{opacity:1;visibility:visible}#menu-toggle{cursor:pointer}