span.goToIndex {
  display: inline-block;
  width: 45px;
  height: 45px;
  background: url(./detail_icon_top.png) no-repeat 0 0 / 100px 100px;
  &:active{
    background: url(./detail_icon_top.png) no-repeat -50px 0 / 100px 100px;
  }
}
span.goToOrder {
  display: inline-block;
  width: 45px;
  height: 45px;
  background: url(./detail_icon_top.png) no-repeat 0 -50px / 100px 100px;
  &:active {
    background: url(./detail_icon_top.png) no-repeat -50px -50px / 100px 100px;
  }
}

.box {
  position: absolute;
  bottom: 60px;
  right: 10px;
}