#canvas {
    width: 100%;
    height: 100%;
    background: black;
}

#overlay {
    color: white;
}

#container {
    width: 100%;
    height: 100%;
    margin: 0px;
    padding: 0px;
    position: relative;
    background: transparent;
}

#container canvas,
#overlay {
    position: absolute;
}

html,
body {
    width: 100%;
    height: 100%;
    margin: 0px;
    padding: 0px;
    overflow: hidden;
}