unter {
                margin: 10px 0 0 0;
            }

            .machine-list {
                height: 300px;
            }

            .btn-block {
                width: 100%;
            }

            .add-btn {
                margin: 20px 0;
                width: 250px;
            }
        </style>
        <firebase-auth app-name="smart-mes" id="auth" user="{{user}}"></firebase-auth>
        <firebase-document app-name="smart-mes" id="userData" path="/user/[[user.uid]]" data="{{k}}"></fire