/** {
  margin: 0;
  padding: 0;
  border: 0;
}

body {
  font: 30px sans-serif;
  background-color: #fff;
}
*/
#canvas {
  position:fixed;
  width:100%;
  height:100%;
  overflow: hidden;
  opacity: 1.0;
  z-index: 5;
  pointer-events: none;
}