<div class=wrapper>
  <div class=cloud>
    <div class=cloud_left></div>
    <div class=cloud_right></div>
  </div>
  <div class=rain>
    <div class=drop></div>
    <div class=drop></div>
    <div class=drop></div>
    <div class=drop></div>
    <div class=drop></div>
  </div>
  <div class=surface>
    <div class=hit></div>
    <div class=hit></div>
    <div class=hit></div>
    <div class=hit></div>
    <div class=hit></div>
  </div>
</div>

body {
  background: #bbb;
}

.wrapper {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  height: 200px;
}

.cloud {
  overflow: hidden;
  padding: 5px;
  height: 50px;
}

.cloud_left {
  position: relative;
  float: left;
  background-color: #234;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  box-shadow: 1px 1px 1px 1px rgba(0, 0, 0, 0.75);
}

.cloud_right {
  position: relative;
  float: left;
  background-color: #203040;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  top: 15px;
  left: -30px;
  box-shadow: 1px 1px 1px 1px rgba(0, 0, 0, 0.75);
}

.rain {
  width: 180px;
  height: 140px;
}

.drop {
  position: relative;
  float: left;
  width: 2px;
  margin: 10px;
  left: 20px;
  background: #789;
  box-shadow: 1px 0.5px 1px 0.5px rgba(0, 0, 0, 0.75);
  animation: rain 0.8s infinite ease-out;
}

.drop:nth-child(1) {
  height: 15px;
  top: 5px;
  animation-delay: -1.0s;
}

.drop:nth-child(2) {
  height: 20px;
  animation-delay: -1.4s;
}

.drop:nth-child(3) {
  height: 15px;
  top: 5px;
  animation-delay: -1.6s;
}

.drop:nth-child(4) {
  height: 10px;
  top: 10px;
  animation-delay: -1.2s;
}

.drop:nth-child(5) {
  height: 5px;
  top: 15px;
  animation-delay: -1.6s;
}

@keyframes rain {
  0% {
    opacity: 1;
    transform: translate(0, 0);
  }
  100% {
    opacity: 0.2;
    transform: translate(0, 100px);
  }
}

.surface {
  position: relative;
  width: 180px;
  height: 140px;
  top: -140px;
}

.hit {
  position: absolute;
  width: 3px;
  height: 1px;
  margin: 10px;
  bottom: -5px;
  border: 1px solid #456;
  border-radius: 50%;
  animation: hit 0.8s infinite ease;
}

.hit:nth-child(1) {
  left: 19px;
  animation-delay: -0.3s;
}

.hit:nth-child(2) {
  left: 41px;
  animation-delay: -0.7s;
}

.hit:nth-child(3) {
  left: 63px;
  animation-delay: -0.9s;
}

.hit:nth-child(4) {
  left: 85px;
  animation-delay: -0.5s;
}

.hit:nth-child(5) {
  left: 107px;
  animation-delay: -0.9s;
}

@keyframes hit {
  0% {
    opacity: 0.75;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(2.5);
  }
}