html,
body {
    height: 100%;
    margin: 0;
    width: 100%;
    overflow: hidden;
    position: absolute;
}

/* Scale canvas with resize attribute to full size */
canvas[resize] {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    overflow: auto;
    width: 100%;
    height: 100%;
    background-image: url("../images/tiling-stars.gif");
    z-index: 0;
}