.bannerbox {
  position: relative;
  overflow: hidden;
  height: 540px;
}
.bannerbox .banner {
  width: 100%;
  height: 540px;
  position: relative;
}
.bannerbox .banner .bannerContent {
  position: relative;
  height: 540px;
  display: block;
  z-index: 9;
}
.bannerbox .banner .bannerContent .banner_item {
  display: none;
  position: absolute;
  left: -960px;
  margin-left: 50%;
  /*banner 当前项目样式*/
}
.bannerbox .banner .bannerContent .banner_item a.bannger_inbox {
  background-repeat: no-repeat;
  background-size: 100% auto;
  background-position: center;
  display: block;
  height: 540px;
  width: 100%;
  min-width: 1920px;
  /*切换动画*/
  transition-duration: 0.5s;
  transition-property: opacity;
  transition-timing-function: ease;
}
.bannerbox .banner .bannerContent .banner_item.banner_active {
  display: block;
}
.bannerbox .banner .navigator {
  position: absolute;
  display: block;
  width: 100%;
  height: 15px;
  bottom: 20px;
  z-index: 100;
}
.bannerbox .banner .navigator ul.navigator_list {
  width: 100%;
  text-align: center;
  display: block;
  height: 15px;
  margin-right: 20px;
}
.bannerbox .banner .navigator ul.navigator_list .navigator_item {
  /*指示器普通样式*/
  display: inline-block;
  margin-left: 10px;
  width: 10px;
  height: 10px;
  border-radius: 10px;
  text-align: center;
  cursor: pointer;
  background: #b01b03;
}
.bannerbox .banner .navigator ul.navigator_list .navigator_item_active {
  /*指示器活动样式*/
  background: #fff;
  border: 1px solid #b01b03;
}