.scratchit {
  position: relative;
}
.scratchit > canvas {
  cursor: pointer;
}

.scratchit > canvas,
.scratchit > img + img {
  position: absolute;
  top: 0;
  left: 0;
}
.scratchit,
.scratchit * {
  -moz-user-select: -moz-none;
  -khtml-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  user-select: none;
}