html {
    height: 100%;
}

body {
    height: 100%;
    margin: 0;
    background: linear-gradient(#27272F, #17171F);
    display: flex;
    overflow: hidden;
}

#game-container {
    margin: auto;
    image-rendering: pixelated;
    background: #000;
    box-shadow: 0 0 2px #000;
}

canvas {
    position: absolute;
}