body {
    background-color: #f0f0f0;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    width: 100vw;
    height: 100vh;
}

main {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    width: 100%;
}

canvas {
    background-color: #000;
    width: 80%;
}