html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
}
body {
    background-color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
canvas {
    flex-shrink: 0;
    background-color: #000;
    object-fit: contain;
}
.crisp{
  image-rendering: -moz-crisp-edges;
  image-rendering: -webkit-crisp-edges;
  image-rendering: pixelated;
}