/* 1. Kill the Ghost */
html, 
body, 
body.fix {
    margin: 0 !important;
    padding: 0 !important;
    /* This is the most important line: */
    background: #000000 none !important; 
    height: 100%;
    width: 100%;
}

/* 2. The Actual Image */
img.autoscale {
    display: block;
    width: 100%;       /* Fill the screen width */
    max-width: 100%;   /* Don't stretch past its pixels */
    height: auto;      /* Keep the map from looking squashed */
    margin: 0 auto;
}