* {
  margin: 0;
  padding: 0;
}

body {
  overflow: hidden;
  background: black;
  touch-action: none;
}

canvas {
  background: rgb(0, 0, 0);
  max-width: 100%;
  max-height: 100%;
  left: 0px;
  right: 0px;
  top: 0px;
  bottom: 0px;
  margin: auto;
  position: fixed;
}

canvas {
  --w: min(100vh, 100vw);
  /* margin: auto; */
  height: var(--w) !important;
  width: var(--w) !important;
}