ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
/* 下拉框包含层 */
.selectedItem {
  position: relative;
  width: 17.8rem;
  height: 1.44rem;
  border-radius: 0.08rem;
  cursor: pointer;
  margin-bottom: 0.4rem;
}
/* 已选中的选项 */
.promptText {
  position: relative;
  padding-left: 10px;
  width: 17rem;
  height: 1.44rem;
  border-radius: 0.2rem;
  border: 1px solid #d3d3d3;
  font-size: 0.8rem;
  font-family: PingFangSC, PingFang SC;
  font-weight: 400;
  color: #b8b8b8;
  line-height: 1.44rem;
}
/* 图标 */
.arrows {
  position: absolute;
  top: 0;
  right: 0.4rem;
  bottom: 0;
  margin: auto;
  width: 0.64rem !important;
  height: 0.64rem;
}
.arrows:focus {
  outline: none;
}
/* 下拉可选项包含层 */
.choiceDescription {
  position: absolute;
  display: none;
  /*overflow: hidden;*/
  margin-top: 2px;
  width: 17.6rem;
  height: 11.5rem;
  overflow: auto;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.1);
  background: #fff;
  z-index: 10;
}
.show {
  display: block;
}
.show_top {
  top: -12rem;
}
/* 下拉可选项 */
.item {
  height: 30px;
  line-height: 30px;
  padding-left: 10px;
  font-size: 15px;
  color: #666;
}
.item:hover {
  color: #fff;
  background: #ccc;
}