.demo-watermark {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-30deg);
  font-size: 8rem;
  font-weight: bold;
  color: rgba(0, 0, 0, 0.08);
  z-index: 9999;
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}


body::before {
  content: "DEMO DEMO DEMO DEMO DEMO DEMO DEMO DEMO DEMO DEMO DEMO DEMO DEMO DEMO DEMO";
  position: fixed;
  top: 0;
  left: 0;
  width: 200%;
  height: 200%;
  transform: rotate(-30deg);
  font-size: 8rem;
  font-weight: bold;
  color: rgba(0, 0, 0, 0.25);
  z-index: 9999;
  pointer-events: none;
  white-space: nowrap;
}