body {
  background-color: black;
  overflow: hidden;
  user-select: none;
  cursor: crosshair;
  margin: 0px;
}

#cont {
  display: fixed;
  width:100%;
  height:100%;
}

#hider{
  position: absolute;
  display: block;
  width:100%;
  height:100%;
  top:0px;
  left:0px;
  z-index: 100;
  background-color: white;
}

svg{
  position: absolute;
  display: block;
  margin: auto;
  top:0px;
  z-index: 10;
  mix-blend-mode: multiply;
}





#barcode {
  z-index: 9999;
}