%div{:class => 'cards'}
  -(1..10).each do |i|
    %div{:class => 'card'}
      %div{:class => 'card-face'}
        %div{:class => 'card-label'} #{i}
View Compiled
html,
body {
  height: 100% ;
}

body {
  background: radial-gradient(#333, #111);
  overflow: hidden;
}

.cards {
  bottom: 0;
  display: flex;
  height: 150px;
  padding: 0 50px;
  justify-content: center;
  position: fixed;
  left: 0;
  right: 0;
}

.card {
  height: 150px;
  margin: 0 -25px;
  position: relative;
  width: 100px;
  &:after {
    // uncomment background below to see hit areas
    //background: rgba(255, 0, 0, 0.15);
    bottom: 0;
    content: '';
    left: -60px;
    position: absolute;
    right: -60px;
    top: 0px;
    z-index: 10
  }
}

.card-face {
  bottom: 0;
  content: '';
  left: 0;
  pointer-events: none;
  position: absolute;
  right: 0;
  top: 0;
  transition: 800ms cubic-bezier(0.19, 1, 0.22, 1) transform;
  &:after {
    animation: none;
    background: #fff;
    bottom: 0;
    content: '';
    left: 0;
    opacity: 0;
    position: absolute;
    right: 0;
    top: 0;
  }
}

.card-label {
  font-family: 'helvetica neue', helvetica, arial, sans-serif;
  font-size: 24px;
  font-weight: bold;
  letter-spacing: -0.025em;
  padding: 15px 0 0 15px;
}

$total: 10;
@for $i from 0 through ($total - 1) {
  $hue: ($i / $total) * -360;
  $rotationRange: 50;
  $rotation: ($i - ($total - 1) / 2) / ($total - 2) * $rotationRange;
  $offsetRange: 80;
  $offset: abs(($i - ($total - 1) / 2) / ($total - 2) * $offsetRange);
  .card:nth-child(#{$i + 1}) {
    .card-face {
      background: linear-gradient(
        -135deg, hsla($hue, 100%, 80%, 1),
        hsla($hue, 90%, 45%, 1)
      );
      box-shadow: 
        -5px 5px 5px hsla(0, 0%, 0%, 0.15),
        inset 0 0 0 2px hsla($hue, 100%, 80%, 0.75)    
      ;
      transform: translateY($offset * 1px) rotate($rotation * 1deg);
      .card-label {
        color: hsla($hue, 100%, 43%, 1);
        text-shadow: -0.025em  0.025em 0 hsla($hue, 100%, 75%, 1);
      }
    }
    &:hover {
      .card-face {
        box-shadow: 
          0 10px 20px hsla(0, 0%, 0%, 0.4),
          inset 0 0 0 2px hsla($hue, 100%, 80%, 0.75)    
        ;
        transform: translateY(-100px) rotate(0deg) scale(2);
        transition-duration: 0ms;
        z-index: 5;
        &:after {
          animation: fade 250ms ease-out forwards;
        }
      }
      &:after {
        top: -175px;  
      }
    }
  }
}

@keyframes fade {
  0% {
    opacity: 0.9;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(1.15);
  }
}
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