body {
    background-color: black;
}
canvas {
    position: absolute;
    top: 0px;
    left: 0px;
    background: transparent;
}
#bgCanvas {
    z-index: -4;
}
#headerCanvas {
    z-index: -3;
}
#entityCanvas {
    z-index: -2;
}
#textCanvas {
    z-index: -1;
}
#shipCanvas {
    z-index: 0;
    border-style: solid;
    border-width: 1px;
    border-color: gray;
}