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

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

canvas{
  
  opacity: 0;
  filter:blur(20px);

}

#barcode {
  z-index: 9999;
}