.main {
    background-image: url("/app/img/login-background.jpg");
    background-size: cover;
}
#div-login-group {
    width: 320px;
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.form-group {
    margin-top: 20px;
    margin-bottom: 20px;
}
#div-two-factor {
    display: none;
}