#bg-login{
    background-image: -moz-linear-gradient(to left, red, white);
    background-size: cover;
    background-position: center center;
}

.slide-down{
    animation: slide-down 1.5s;
}
@keyframes slide-down{
    from{
        opacity: 0;
        transform: translateY(-60px);
    }
    to{
        opacity: 1;
        transform: translateY(0px);
    }
}