html {
  height: 100%;
}
img {
  display: none;
}
body {
  background-color: #000;
  overflow: hidden;
  font-size: 10px;
  padding: 0;
  margin: 0;
  width: 100%;
  height: 100%;
  text-align: center;
  position: relative;
}
canvas {
  width: 100vh;
  height: 100vh;
  margin: auto;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}