<div class="loader">
  <div class="loader__bar"></div>
  <div class="loader__bar"></div>
  <div class="loader__bar"></div>
  <div class="loader__bar"></div>
  <div class="loader__bar"></div>
  <div class="loader__ball"></div>
</div>

// Variables
$bar-color: #fff;
$ball-color: #fff;
$bg-color: #EA4961;

html {
  height: 100%;
}
body {
  height: 100%;
  background: $bg-color;
  display: flex;
  align-items: center;
  justify-content: center;
}

.loader {
  
  position: relative;
  width: 75px;
  height: 100px;
  
  &__bar {
    position: absolute;
    bottom: 0;
    width: 10px;
    height: 50%;
    background: $bar-color;
    transform-origin: center bottom;
    box-shadow: 1px 1px 0 rgba(0,0,0,.2);
    
    @for $i from 1 through 5 { 
       &:nth-child(#{$i}) {
         left: ($i - 1) * 15px;
         transform: scale(1,$i*.2);
         animation: barUp#{$i} 4s infinite;
        }
    }
    
  }
  
  &__ball {
    position: absolute;
    bottom: 10px;
    left: 0;
    width: 10px;
    height: 10px;
    background: $ball-color;
    border-radius: 50%;
    animation: ball 4s infinite;
  }
}

@keyframes ball {
  0% {
    transform: translate(0, 0);
  }
  5% {
    transform: translate(8px, -14px);
  }
  10% {
    transform: translate(15px, -10px)
  }
  17% {
    transform: translate(23px, -24px)
  }
  20% {
    transform: translate(30px, -20px)
  }
  27% {
    transform: translate(38px, -34px)
  }
  30% {
    transform: translate(45px, -30px)
  }
  37% {
    transform: translate(53px, -44px)
  }
  40% {
    transform: translate(60px, -40px)
  }
  50% {
    transform: translate(60px, 0)
  }
  57% {
    transform: translate(53px, -14px)
  }
  60% {
    transform: translate(45px, -10px)
  }
  67% {
    transform: translate(37px, -24px)
  }
  70% {
    transform: translate(30px, -20px)
  }
  77% {
    transform: translate(22px, -34px)
  }
  80% {
    transform: translate(15px, -30px)
  }
  87% {
    transform: translate(7px, -44px)
  }
  90% {
    transform: translate(0, -40px)
  }
  100% {
    transform: translate(0, 0);
  }
}

@keyframes barUp1 { 
  0% {
    transform: scale(1, .2);
  }
  40%{
    transform: scale(1, .2);
  }
  50% {
    transform: scale(1, 1);
  }
  90% {
    transform: scale(1,1);
  }
  100% {
    transform: scale(1,.2);
  }
}
@keyframes barUp2 { 
  0% {
    transform: scale(1, .4);
  }
  40% {
    transform: scale(1, .4);
  }
  50% {
    transform: scale(1, .8);
  }
  90% {
    transform: scale(1, .8);
  }
  100% {
    transform: scale(1, .4);
  }
}
@keyframes barUp3 { 
  0% {
    transform: scale(1, .6);
  }
  100% {
    transform: scale(1, .6);
  }
}
@keyframes barUp4 { 
  0% {
    transform: scale(1, .8);
  }
  40% {
    transform: scale(1, .8);
  }
  50% {
    transform: scale(1, .4);
  }
  90% {
    transform: scale(1, .4);
  }
  100% {
    transform: scale(1, .8);
  }
}
@keyframes barUp5 { 
  0% {
    transform: scale(1, 1);
  }
  40% {
    transform: scale(1, 1);
  }
  50% {
    transform: scale(1, .2);
  }
  90% {
    transform: scale(1, .2);
  }
  100% {
    transform: scale(1, 1);
  }
}