body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-color: #000;
    background-image: url('evospace.jpg');
    background-size: cover;
    background-position: center;
    overflow: hidden;
}
#bg { position: fixed; top: 0; left: 0; z-index: 1; }