.city_box h3 {
  margin: 0;
  padding: 0;
  line-height: 30px;
  border-top: 1px solid #ddd;
  font-size: 18px;
  padding-left: 20px;
}
.city_box li {
  line-height: 36px;
  border-top: 1px solid #ddd;
  background: #fff;
  padding-left: 20px;
}
.city_box li i {
  margin-right: 6px;
}
.city_box li a {
  display: block;
}
.py_box {
  position: fixed;
  right: 0;
  top: 50%;
  margin-top: -200px;
}
.py_box a {
  display: block;
  width: 36px;
  line-height: 18px;
  text-align: center;
  color: #23beae;
}