#certify {
  position: relative;
  width: 1200px;
  margin: 0 auto;
}

#certify .swiper-container {
  padding-bottom: 80px;
}

#certify .swiper-slide {
  width: 520px;
  height: 300px;
  background: rgba(255, 255, 255, 0);
  box-shadow: 0 3px 20px rgba(18, 108, 233, 0.5);
}
#certify .swiper-slide img {
  display: block;
  width: 100%;
}
#certify .swiper-pagination {
  width: 100%;
  bottom: 10px;
}

#certify .swiper-pagination-bullets .swiper-pagination-bullet {
  margin: 0 5px;
  border: 3px solid #fff;
  background-color: #d5d5d5;
  width: 10px;
  height: 10px;
  opacity: 1;
}

#certify .swiper-pagination-bullets .swiper-pagination-bullet-active {
  border: 3px solid rgb(18, 108, 233);
  background-color: #fff;
}

#certify .swiper-button-prev {
  left: -30px;
  width: 45px;
  height: 45px;
  background-position: 0 0;
  background-size: 100%;
}

#certify .swiper-button-prev:hover {
  background-position: 0 -46px;
  background-size: 100%;
}

#certify .swiper-button-next {
  right: -30px;
  width: 45px;
  height: 45px;
  background-position: 0 -93px;
  background-size: 100%;
}

#certify .swiper-button-next:hover {
  background-position: 0 -139px;
  background-size: 100%;
}