body {

    background: linear-gradient(to right, #000000, #003d47);

}

.authentication2::before {
    background-image: url('/img/bg-login.jpg') !important;
    opacity: 0.2;
    width: 100%;
    height: 100%;
    background-repeat: no-repeat;
    content: "";
    position: fixed;
}

.container {
    z-index: 1;
}