body, html {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    background: #000;
    color: #fff;
    overflow: hidden;
}

#space-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}