.swiper-container {
  height: 500px;
  display: flex;
  align-items: center;
}

.swiper-wrapper {
  display: flex;
  align-items: center;
}

.swiper-slide img {
  max-width: 100%;
  max-height: 100%;
  margin: auto;
  display: block;
}
.swiper-button-next:after, .swiper-button-prev:after {
  font-size: 28px;
}