body {
    background: url("../images/bg.png") no-repeat center center fixed ;
    background-size: cover;
}

.login-box {
    width: 300px;
    height: 300px;
    border: 1px solid #1a312c;
    position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -150px;
    margin-top: -150px;
    border-radius: 5px;
}

.head {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    position: absolute;
    top: -96px;
    left: 50%;
    margin-left: -50px;
    background: url("../images/ok.png");
    background-size: cover;
}

.input-box {
    margin: 10px 10px 10px 10px;
}

.input-box input {
    margin-top: 20px;
    border-radius: 5px;
}

.input-box input[type="submit"] {
    background-color: #189F92;
    width: 100%;
    border: none;
    outline: none;
    cursor: pointer;
    color: #fff;
    padding-top: 8px;
    padding-bottom: 8px;
    font-size: 18px;
}

.input-box .remember-me {
    margin-top: 20px;
}

.input-box .remember-me .layui-form-switch {
    margin-top: 0;
}

.input-box .oauth {
    margin-top: 20px;
}

.input-box .oauth i {
    cursor: pointer;
    font-size: 28px;
}

.copyright {
    margin: 10px 10px 10px 10px;
    font-size: 12px;
}