html,body {
  position:fixed !important;;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display:inline-block;
  justify-content: center;
  align-items: center;
  margin: 0;
  padding: 0;
background-color:#fffbeb;/* #edede9 */  
background-position: center;
background-repeat: no-repeat; 
background-size: cover;  
overflow:hidden;
}
canvas {
  position:fixed !important;;
  object-fit: contain;
  max-height: 100%;
  max-width: 100%;
  display:inline-block;
  touch-action:none;
  image-rendering:pixelated;
}