* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #1b1b1b;
}
.rain {
  position: relative;
  width: 100%;
  height: 400px;
  display: flex;
  justify-content: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.rain .cloud {
  position: relative;
  width: 320px;
  height: 100px;
  background: #fff;
  border-radius: 100px;
  filter: drop-shadow(8px 8px 0 #0005) brightness(1);
  animation: animateCloud 2s linear infinite;
}
@keyframes animateCloud {
  0% {
    filter: drop-shadow(8px 8px 0 #0001) drop-shadow(0 0 0 #fff) brightness(1);
  }
  95% {
    filter: drop-shadow(8px, 8px, 0 #0001) drop-shadow(0, 0, 50px #fff5) brightness(10);
  }
}
.rain .cloud::before {
  content: '';
  position: absolute;
  top: -50px;
  left: 40px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background-color: #484f59;
  box-shadow: 90px -10px 0 30px #484f59;
}
.rain .cloud::after {
  content: '';
  position: absolute;
  inset: 0;
  background-color: #484f59;
  border-radius: 100px;
  z-index: 1;
}
.rain .cloud .drop {
  position: absolute;
  background-color: #05a2eb;
  top: 40px;
  width: 2px;
  height: 10px;
  transform-origin: bottom;
  animation: animateDrap 2s linear infinite;
}
@keyframes animateDrap {
  0% {
    transform: translateY(0) scaleY(1);
  }
  70% {
    transform: translateY(360px) scaleY(1);
  }
  80% {
    transform: translateY(360px) scaleY(0.2);
  }
  100% {
    transform: translateY(360px) scaleX(15) scaleY(0);
  }
}