Mouse Scrolling Animation

mouse.scss

.mouse {
  width: 26px;
  height: 40px;
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translate(-50%, 0);
  z-index: 20;
  border: 1px solid rgba(#ffffff, 0.5);
  border-radius: 13px;
  text-align: center;
  font-size: 12px;
  font-weight: 500;
  line-height: 38px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: rgba(#ffffff, 0.0);
  
  &:after {
    width: 100%;
    height: 100%;
    position: absolute;
    top: -10px;
    left: 0;
    content: '';
  }
  
  .text {
    display: none;
  }
  
  .wheel {
    width: 2px;
    height: 5px;
    position: absolute;
    top: 0;
    left: 50%;
    background-color: rgba(#ffffff, 0.5);
    border-radius: 2px;
    
    // Add the default animation.
    
    animation-name: down;
    animation-duration: 2s;
    animation-fill-mode: both;
    animation-iteration-count: infinite;
  }
  
  &:hover {
    width: auto;
    height: 30px;
    line-height: 28px;
    padding: 0 15px;
    border-radius: 20px;
    border-color: rgba(#ffffff, 0.75);
    color: rgba(#ffffff, 0.85);
    
    &:after {
      top: -20px;
    }
    
    .text {
      display: block;
    }
    
    .wheel {
      display: none;
    }
  }
}

@keyframes down {
  0% {
    transform: translate(-50%, 0);
    opacity: 0;
  }
  
  50% {
    opacity: 1;
  }
  
  100% {
    transform: translate(-50%, 15px);
    opacity: 0;
  }
}