.top-menu{display:none}.side-menu{display:block;position:fixed;top:0;left:0;width:200px;height:100vh;background-color:#fff}.side-menu ul{list-style:none;margin:0;padding:0}.side-menu li{margin:10px}.side-menu li a{display:block;padding:10px;text-decoration:none;color:#000}.side-menu li a:hover{background-color:#eee}