.highlights li {
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

.highlights li.visible {
  opacity: 1;
}
.image-carousel {
  position: relative;
  width: 350px;
  height: 250px;
  overflow: hidden;
}

.carousel-image {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.carousel-image.active {
  opacity: 1;
}