body {
    background: url('/img/backpic4.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
}

.login-provider-logo { height:24px; width:auto; display:block; }