Dueling picklist are used to move options between two lists. The list options can be re-ordered.
button { border: 1px solid #2980bf; height: 26px; width: 26px; box-shadow: 0px 2px 3px 0px rgba(0, 0, 0, 0.1); margin: 6px 0; color: #2980bf; line-height: 26px; }