.scroll-space{
  box-sizing: border-box;
  padding-top: 300px;
  height: 1600px;
  color: #fff;
  overflow: hidden;
  .blue{
    background: #77BBCF;
    width: 200px;
    height: 200px;
    padding: 30px;
    margin: 0 auto 50px;
  }
  .pink{
    background: #FFB4B4;
    width: 200px;
    height: 200px;
    padding: 30px;
    margin: 0 auto 50px;
  }
  .yellow{
    background: #F8913C;
    width: 200px;
    height: 200px;
    padding: 30px;
    margin: 0 auto 50px;
  }
  .green{
    background: #26AA5A;
    width: 200px;
    height: 200px;
    padding: 30px;
    margin: 0 auto 50px;
  }
}
.fadein {
    opacity: 0;
    transform: translate(0,0);
    transition: all 1.5s;
  &.fadein-left{
      transform: translate(-30px,0);
  }
  &.fadein-right{
      transform: translate(30px,0);
  }
  &.fadein-up{
      transform: translate(0,-30px);
  }
  &.fadein-bottom{
      transform: translate(0,30px);
  }
  &.scrollin{
    opacity: 1 !important;
    transform: translate(0, 0) !important;
  }
}