assistant-todo-mobile/src/pages/CityList/index.css

.citylist{
    height: 100%;
    padding-top: 45px;
}
.citylist-navbar {
    background: #f6f5f6;
    margin-top: -45px;
}
ul{
    list-style: none;
    margin: 0;
}

.city-index {
  position: absolute;
  display: flex;
  flex-direction: column;
  right: 5px;
  z-index: 1;
  height: 90%;
  box-sizing: border-box;
  padding-top: 20px;
  text-align: center;
}
.city-index .city-index-item {
    flex: 1;
  }

.city-index .index-active {
    color: #fff;
    background-color: #21b97a;
    border-radius: 100%;
    display: inline-block;
    font-size: 12px;
    width: 15px;
    height: 15px;
    line-height: 15px;
  }