.multiple_select {
  border: 1px solid #aaa;
  /*height: 200px;*/
  width: 250px;
  padding: 5px;
  /*margin: 1em;*/
  overflow: auto;
  line-height: 1.6em;
}

.multiple_select, .multiple_select ul {
  list-style-type: none;
  line-height: 1.6em;
}

.multiple_select_checkbox {
  background: #fff;
}