%ul.loading-frame
  - (1..10).each do |i|
    .circle
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@circle-size: 15px;
@dot-color: #3FC380;
@light-dot-color: #fff;

@background: #333;

body {
  background-color: @background;
}

.loading-frame {
  position: absolute;
  top: 35%;
  left: 45%;
}

.circle {
  position: absolute;
  height: @circle-size;
  width: @circle-size;
  border-radius: @circle-size;
  background-color: @dot-color;
  animation: animate linear 2s infinite;
}

.circle:nth-child(1) {
  animation-delay: 0.9s;
}

.circle:nth-child(2) {
  animation-delay: 1.1s;
  transform: translate(18px,13px);
}

.circle:nth-child(3) {
  animation-delay: 1.3s;
  transform: translate(35px,25px);
}

.circle:nth-child(4) {
  animation-delay: 1.1s;
  transform: translate(18px,38px);
}

.circle:nth-child(5) {
  animation-delay: 0.9s;
  transform: translate(0px, 50px);
}

.circle:nth-child(6) {
  animation-delay: 0.9s;
  transform: translate(0,25px);
}

.circle:nth-child(7) {
  animation-delay: 0.7s;
  transform: translate(-20px,25px);
}

.circle:nth-child(8) {
  animation-delay: 0.5s;
  transform: translate(-40px,25px);
}

.circle:nth-child(9) {
  animation-delay: 0.3s;
  transform: translate(-60px,25px);
}

.circle:nth-child(10) {
  animation-delay: 0.1s;
  transform: translate(-80px,25px);
}

@keyframes animate {
  0%, 100% {
    background-color: @dot-color;
  }
  50% {
    background-color: @light-dot-color;
  }
}




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