html,
body {
    background-color:black;
    height:100%;
}

body {
    margin:0;
    overflow:hidden;
}

canvas {
    position:absolute;
    image-rendering: optimizeSpeed;
    image-rendering: -moz-crisp-edges;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: -o-crisp-edges;
    image-rendering: pixelated;
    -ms-interpolation-mode: nearest-neighbor;
}