form{background:#e5f6f6}.dropdown-menu{background:#fff;border:1px solid #ccc;box-shadow:2px 2px 10px rgba(0,0,0,.1);display:none;list-style:none;margin:0;max-height:150px;overflow-y:auto;padding:0;position:absolute;width:200px}.dropdown-menu li{cursor:pointer;padding:8px}.dropdown-menu li:hover{background:#f0f0f0}