html, body {
  background: #000;
  width: 100%;
  height: 100%;
  font-family: Helvetica, sans-serif;
  -webkit-text-size-adjust: none;
  padding:0;
  margin:0;
  text-align:center;
  overflow:hidden;
}
footer {
  color:#eee;
  cursor:inherit;
}
#canvas {
  margin-top:20px;
  background:#222;
  cursor:inherit;
}