html, body {
    height: 100%;
}

body {
    background:
        radial-gradient(
            circle at 50% 35%,
            #f6f1e7 0%,
            #efe3cf 35%,
            #e2c7a6 60%,
            #c89a73 85%,
            #b07a57 100%
        );
    background-attachment: fixed;
}