* {
  margin: 0;
  padding: 0;
}
body,
html {
  width: 100%;
  height: 100%;
  overflow: hidden;
}
canvas {
  position: absolute;
  cursor: crosshair;
}
#erase-preview {
  position: absolute;
  background-color: rgba(0, 0, 0, 0.8);
  border: 1px solid #ffffff;
  pointer-events: none;
}