.bannerbox {
  width: 100%;
  height: 650px;
  position: relative;
}
.bannerbox .banner {
  width: 100%;
  height: 650px;
  display: block;
}


.bannerbox .banner .banner_img a{  
  position: relative; 
width: 100%;
  height: 650px;
  display: block;
  background-size: auto 100%;
  background-position: center;
  background-repeat: no-repeat;}
.bannerbox .banner_pagination {
  position: absolute;
  bottom: 100px;
  left: 0;
  right: 0;
  height: 20px;
  line-height: 20px;
  z-index: 11;
  width: 10%;
  margin: 0 auto;
  text-align: center;
}
.bannerbox .banner_pagination .swiper-pagination-bullet {
  display: inline-block;
  width: 40px;
  height: 10px;
  border-radius: 10px;
  background: #fff;
  margin: auto 6px;
  cursor: pointer;
  opacity: 1;
}
.bannerbox .banner_pagination .swiper-pagination-bullet-active {
  width: 20px;
  height: 10px;
  background: #3393ff;
}