body,
html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #1a1a1a;
    display: flex;
    justify-content: center;
    align-items: center;
}

#container {
    width: 100%;
    height: 100%;
    max-width: 177.78vh;
    /* 16/9 aspect ratio constraint based on height */
    max-height: 56.25vw;
    /* 9/16 aspect ratio constraint based on width */
    margin: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    aspect-ratio: 16/9;
}

canvas {
    width: 100%;
    height: 100%;
    image-rendering: pixelated;
    /* Crucial for pixel art look */
}