.list-columns:after {
  content: '';
  display: block;
  clear: both;
}

.list-columns ul {
  max-width: 250px;
  margin: 1em 0;
}

.list-columns ul:first-of-type {
  float: left;
}

.list-columns ul:last-of-type {
  float: right;
}

.list-columns ul li {
  list-style-type: disc;
  text-align: left;
}