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              .group  
  .bigSqr
    .square.first
    .square.second
    .square.third
    .square.fourth
  .text loading
            
          
!
            
              $blue: #0AE
$wht: #FFF

@import url('https://fonts.googleapis.com/css?family=Roboto:100,400')

body
  background: $blue
  text-align: center
  line-height: 100vh

.group
  position: relative
  display: inline-block
  line-height: 16px
  
.bigSqr
  position: relative
  display: inline-block
  width: 40px
  height: 40px
  overflow: hidden
  transform-origin: bottom left
  animation: bigSqrShrink 1s linear infinite
  
.square
  position: absolute
  width: 20px
  height: 20px
  background: $wht
  
.first
  left: 0px
  top: 20px
  
  
.second
  left: 20px
  top: 20px
  animation: drop2 1s linear infinite
  
.third
  left: 0px
  top: 0px
  animation: drop3 1s linear infinite
  
.fourth
  left: 20px
  top: 0px
  animation: drop4 1s linear infinite
  
.text
  line-height: 16px
  font-family: "Open Sans","Roboto",Arial , sans-serif
  font-weight: 400
  color: $wht
  display: block
  margin: 10px auto
  padding: 3px
  
@keyframes bigSqrShrink
  0%
    transform: scale(1)
  90%
    transform: scale(1)
  100%
    transform: scale(0.5)
  
@keyframes drop2
  0%
    transform: translateY(-50px)
  25%
    transform: translate(0)
  100%
    transform: translate(0)
    
@keyframes drop3
  0%
    transform: translateY(-50px)
  50%
    transform: translate(0)
  100%
    transform: translate(0)
 
@keyframes drop4
  0%
    transform: translateY(-50px)
  75%
    transform: translate(0)
  100%
    transform: translate(0)
  


            
          
!
999px
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