html, body {
  width: 100%;
  height: 100%;
  margin: auto 0;
  padding: 0;
}

body {
  overflow: hidden;
  background: #000000;
}

main {
  width: 100%;
  height: 90%;
  display: flex;
  align-items: center;
  justify-content: center;
	padding-top: 50px;
}

canvas {
  height: auto !important;
  width: auto !important;
  max-width: 100%;
  max-height: 100%;
  display: inline-block; /* Instead of display: block; */
  margin: 0 auto;
  vertical-align: middle;
  touch-action: none;
}