body {
    background: #76b852;
    background: -webkit-linear-gradient(right, #76b852, #8DC26F);
    background: -moz-linear-gradient(right, #76b852, #8DC26F);
    background: -o-linear-gradient(right, #76b852, #8DC26F);
    background: linear-gradient(to left, #76b852, #8DC26F);
    font-family: "Roboto", sans-serif;
}

.login-page {
    width: 360px;
    padding: 8% 0 0;
    margin: auto;
}

.form {
    position: relative;
    z-index: 1;
    background: #FFFFFF;
    max-width: 360px;
    margin: 0 auto 100px;
    padding: 45px;
    text-align: center;
    box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2), 0 5px 5px 0 rgba(0, 0, 0, 0.24);
}

.form input {
    font-family: "Roboto", sans-serif;
    outline: 0;
    background: #f2f2f2;
    width: 100%;
    border: 0;
    margin: 0 0 15px;
    padding: 15px;
    box-sizing: border-box;
    font-size: 14px;
}
.form button {
    font-family: "Microsoft YaHei", "Roboto", sans-serif;
    text-transform: uppercase;
    outline: 0;
    background: #4CAF50;
    width: 100%;
    border: 0;
    padding: 15px;
    color: #FFFFFF;
    font-size: 14px;
    -webkit-transition: all 0.3 ease;
    transition: all 0.3 ease;
    cursor: pointer;
}

.form button:hover,
.form button:active,
.form button:focus {
    background: #43A047;
}

.form .message {
    margin: 15px 0 0;
    color: #b3b3b3;
    font-size: 12px;
}

.form .message a {
    color: #4CAF50;
    text-decoration: none;
}

.form .register-form {
    display: none;
}

.shake_effect {
    -webkit-animation-name: shake;
    animation-name: shake;
    -webkit-animation-duration: 1s;
    animation-duration: 1s;
}

@-webkit-keyframes shake {
    from,
    to {
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0);
    }
    10%,
    30%,
    50%,
    70%,
    90% {
        -webkit-transform: translate3d(-10px, 0, 0);
        transform: translate3d(-10px, 0, 0);
    }
    20%,
    40%,
    60%,
    80% {
        -webkit-transform: translate3d(10px, 0, 0);
        transform: translate3d(10px, 0, 0);
    }
}

@keyframes shake {
    from,
    to {
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0);
    }
    10%,
    30%,
    50%,
    70%,
    90% {
        -webkit-transform: translate3d(-10px, 0, 0);
        transform: translate3d(-10px, 0, 0);
    }
    20%,
    40%,
    60%,
    80% {
        -webkit-transform: translate3d(10px, 0, 0);
        transform: translate3d(10px, 0, 0);
    }
}