body {
    margin: 0;
    background: #111;
}

canvas {
    display: block;
    margin: auto;
    background: #222;
}

#game {
    width: 800px !important;
    height: 600px !important;
}

/* Debug popup */
#debug {
    position: absolute;
    top: 10px;
    left: 10px;
    color: lime;
    font-family: monospace;
    background: rgba(0,0,0,0.6);
    padding: 10px;
    border-radius: 6px;
}