* {
  margin: 0;
  padding: 0
}
.banner {
  position: relative;
  overflow: auto;
  text-align: center;
  margin: 0 auto
}
.banner .dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 20px;
  z-index: 3;
}
.banner .dots li {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin: 0 4px;
  text-indent: -999em;
  border: 2px solid #fff;
  border-radius: 6px;
  cursor: pointer;
  opacity: .4;
  -webkit-transition: background .5s, opacity .5s;
  -moz-transition: background .5s, opacity .5s;
  transition: background .5s, opacity .5s
}
.banner .dots li.active {
  background: #fff;
  opacity: 1
}
.banner .arrow {
  position: absolute;
  width: 20px;
  height: 37px;
  top: 50%;
  margin-top: -18px;
  overflow: hidden;
  z-index: 2;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
  -o-transition: all 0.5s;
  transition: all 0.5s;
}
.banner #al {
  left: 15px
}
.banner #ar {
  right: 15px
}
.banner ul {
  z-index: 1;
  width: 600%;
  overflow: hidden;
}
.banner ul .slider-item {
  width: 480px;
  float: left;
  height: 480px;
  position: relative;
  overflow: hidden;
}
.banner ul .slider-item .slider-title {
  position: absolute;
  left: 0;
  bottom: 0px;
  padding: 15px;
  text-align: left;
  line-height: 28px;
  color: #fff;
  font-size: 18px;
  font-weight: bold;
  background: -webkit-linear-gradient(top, transparent, rgba(0, 0, 0, 0.9));
  background: url(../images/slider-info-bg.png) \9;
}
.banner .progressd {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 15%;
  min-height: 5px;
  overflow: hidden;
  z-index: 1;
  background: #0d6efd;
}