.x570silderbox .x570dot {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  margin-top: 40px;
}

.x570silderbox .x570dot li {
  width: 25px;
  height: 25px;
  border-radius: 25px;
  margin: 0 8px;
  cursor: pointer;
  opacity: .6;
  border: #f00 5px solid;
}

.x570silderbox .x570dot li span {
  display: none;
}

.x570silderbox .x570dot li:hover {
  opacity: 1;
}

.x570silderbox .x570dot li.active {
  width: 80px;
  background: #f00;
  opacity: 1;
}

.x570silderbox .silderitem {
  display: none;
}

.x570silderbox .silderitem.active {
  display: block;
}