File: assets/vendor/bootstrap-md/scss/free/_carousels.scss

// Carousels
.carousel {
  .carousel-control-prev-icon,
  .carousel-control-next-icon {
    width: $carousel-control-icon-width;
    height: $carousel-control-icon-height;
  }
  .carousel-control-prev-icon {
    background-image: $carousel-control-prev-icon;
  }
  .carousel-control-next-icon {
    background-image: $carousel-control-next-icon;
  }
  .carousel-indicators {
    li {
      width: $carousel-indicators-width;
      height: $carousel-indicators-height;
      cursor: pointer;
      border-radius: $carousel-indicators-border-radius;
    }
  }
}
.carousel-fade {
  .carousel-item {
    opacity: 0;
    transition-duration: $carousel-transition-duration;
    transition-property: opacity;
  }
  .carousel-item.active,
  .carousel-item-next.carousel-item-left,
  .carousel-item-prev.carousel-item-right {
    opacity: 1;
  }
  .carousel-item-left,
  .carousel-item-right {
    &.active {
      opacity: 0;
    }
  }
  .carousel-item-next,
  .carousel-item-prev,
  .carousel-item.active,
  .carousel-item-left.active,
  .carousel-item-prev.active {
    transform: $carousel-item-transform;
    @supports (transform-style: preserve-3d) {
      transform: $carousel-item-transform-2;
    }
  }
}