.selectivityBox {
  width: 100%;
  height: 30px;
  position: relative;
}

.selectivityBox .selectivitylist {
  position: absolute;
  left: 0;
  top: 100%;
  width: 100%;
  max-height: 200px;
  height: auto;
  overflow-y: scroll;
  overflow-x: hidden;
  background-color: #fff;
  display: none;
}

.selectivityBox .selectivitylist .option {
  height: 30px;
  border-bottom: 1px solid #ccc;
  line-height: 30px;
  text-indent: 4px;
  font-size: 12px;
}