body {
  margin: 0;
  overflow: hidden;
  background-color: #0d0d0d; /* Dark background */
}

#thunderstorm {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.raindrop {
  position: absolute;
  background-image: linear-gradient(to bottom, #0036, #8cef);
  width: 3px;
  height: 20px;
  opacity: 0;
}

#lightning {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #eef;
  opacity: 0;
}