body {
    margin: 0;
    padding: 0;
    /* Background image: fill height, keep aspect ratio; allow side color bars */
    background: #070724 url('/static/img/feather_1024x1536.png') no-repeat center center fixed;
    background-size: auto 100%;
    color: #FFFFFF;
    font-family: Arial, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}
.content {
    text-align: center;
}