html,
body {
    margin: 0;
    padding: 0;
    background-color: rgb(0, 0, 0);
    margin: auto;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    text-align: center;
}

canvas {
    display: block;
    margin: auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
}


}