body {
  margin: 0px;
  overflow: hidden;
  background-color: blue;
}


canvas {
  background-image: url('https://c4.wallpaperflare.com/wallpaper/72/340/1016/minecraft-render-screenshots-wallpaper-preview.jpg');
  margin: 0;
  background-size: cover;
  width: 100%;
  height: 100%;
}


img {
  display: none;
}