.carousel-inner {
  > .item {
    position: absolute;
    top: -999999em; 
    display: block;
    @include single-transition(0.6s, ease-in-out, left);
  }

  > .active {
    top: 0;
  }
  > .active,
  > .next,
  > .prev {
    position: relative
  }

  > .next,
  > .prev {;
    position: absolute;
    top: 0;
    width: 100%;
  }
}