body {
  background: #008DFF;
  background-repeat: no-repeat;
}
#rainContainer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.raindrop {
  position: absolute;
  width: 5px;
  height: 15px;
  background-color: black;
  border-radius: 5px;
}
#fog {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1000%;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0), rgba(255, 255, 255, 1));
  z-index: 9999;
}