body {
  background: #9ee3de;
  margin: 0;
  padding: 0;
  -moz-user-select: none;
  -khtml-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  user-select: none; }

canvas {
  width: 100%;
  height: 100%;
  display: block;
  z-index: -1; }

#mute {
  display: inline;
  position: fixed;
  right: 5px;
  bottom: 5px;
  z-index: 1;
  opacity: 0.6; }

#info {
  font-family: Arial;
  display: inline;
  position: fixed;
  right: 8px;
  bottom: 8px;
  z-index: 1; }

#info a {
  opacity: 0.3;
  color: black;
  font-size: 18px;
  margin-left: 0.4em; }