body, html {
    margin: 0;
    padding: 0;
}
body {
    width: 100%;
    height: 100%;
}

.auth-bg {
    position: fixed;
    height: 100%;
    width: 100%;
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #d55059, #b427d5);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
}
.auth {
    min-height: 100vh;
    position: absolute;
    right: 0;
    top: 0;
    width: 40%;
    padding: 4vw;
    box-sizing: border-box;
    background-color: #EEEEEE;
    box-shadow: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
}
@media only screen and (max-width: 850px) {
    .auth {
        width: 60%;
    }
}
@media only screen and (max-width: 500px) {
    .auth {
        width: 100%;
    }
}
@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}