html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
    background: #fff;
    color: #000;
    font-family: system-ui, sans-serif;
}

canvas {
    border: 2px solid #444;
    display: block;
    margin: 20px auto;
    image-rendering: pixelated;
}

.controls {
    display: block;
    width: fit-content;
    margin: 20px auto;
}

.pb-20 {
    padding-bottom: 20px;
}

.pb-40 {
    padding-bottom: 40px;
}