.a7-swiper {
  width: 100%;
  max-width: 900px;
  margin: 20px auto;
}
.a7-swiper .swiper-slide img {
  width: 100%;
  height: auto;
  border-radius: 10px;
}
.swiper-button-prev,
.swiper-button-next {
  color: #000;
}