<div id="container">
    <div class="liquid-drops">
        <div class="drop1"></div>
        <div class="drop2"></div>
    </div>
    <div class="falling-drops"></div>
    <div class="tube"> 
      <div class="liquid"></div>
      <div class="drops"></div>
    </div>
</div> 

*{
  margin: 0;
  padding: 0;
}

body{
  background: #333739;
}

#container{
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
}

.tube{
  position: relative;
  width: 65px;
  height: 250px;
  margin: 80px auto 0;
  background: #787d7f;
  border-bottom-left-radius: 40px;
  border-bottom-right-radius: 40px;
} 

.tube:before{
  content: "";
  position: absolute;
  width: 80px;
  height: 25px;
  top: 0px;
  left: -8px;
  background: #d1d3d0;
  border-radius: 2px;
}

.liquid{
  position: absolute;
  background: #6fc93c;
  bottom: 0;
  width: 65px;
  height: 135px;
  border-bottom-left-radius: 40px;
  border-bottom-right-radius: 40px;
}

.liquid:before{
  content: "";
  position: absolute;
  width: 65px;
  height: 50px;
  background: #b4e54f;
  top: -20px;
  left: 0px;
  border-bottom-left-radius: 40px;
  border-bottom-right-radius: 40px;
}

.drops:before{
  content: "";
  position: absolute;
  width: 12px;
  height: 45px;
  background: #b4e54f;
  border-bottom-left-radius: 5px;
  border-bottom-right-radius: 5px;
  top: 120px;
  left: 50px;
}

.drops:after{
  content: "";
  position: absolute;
  width: 12px;
  height: 45px;
  background: #b4e54f;
  border-bottom-left-radius: 5px;
  border-bottom-right-radius: 5px;
  top: 110px;
  left: 35px;
}

.liquid-drops{
  position: relative;
  top: 60px;
  left: 5px;
  width: 45px;
  height: 45px;
  animation: spiner 11s ease-in-out  infinite;
  transform-orgin: center;
  
}

.liquid-drops .drop1{
  position: absolute;
  width: 12px;
  height: 12px;
  background: #b4e54f;
  top: 0;
  left: 0px;
  border-radius: 50%;
}

.liquid-drops .drop1:before{
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  background: #b4e54f;
  top: 0;
  left: 35px;
  border-radius: 50%;
}

.liquid-drops .drop2{
  position: absolute;
  width: 12px;
  height: 12px;
  background: #b4e54f;
  bottom: 0;
  left: 0px;
  border-radius: 50%;
}

.liquid-drops .drop2:before{
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  background: #b4e54f;
  bottom: 0;
  left: 35px;
  border-radius: 50%;
}

.falling-drops{
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #b4e54f;
  position: relative;
  top: 63px;
  left: 28px;
  z-index: 1;
  opacity: 0;
  animation: drops 2.6s ease-in-out 2.8s infinite;
}

@keyframes spiner{
  0%{
    transform: rotate(0deg);
    animation-timing-function: ease-in-out;
  }
  25%{
    transform: rotate(45deg);
    animation-timing-function: ease-in-out;
  }
  50%{
    transform: rotate(135deg);
    animation-timing-function: ease-in-out;
  }
  75%{
    transform: rotate(225deg);
    animation-timing-function: ease-in-out;
  }
  90%{
    transform: rotate(310deg);
    animation-timing-function: ease-in-out;
    animation-delay: 0.5;
  }
  100%{
    transform: rotate(360deg);
    animation-timing-function: ease-in-out;
  }
}

@keyframes drops{
  0%{
    opacity: 1;
    top: 63px;
  }
  100%{
    opacity: 0.5;
    top: 175px;
  }
}