.double-list .list-selected,
.double-list .list-unselected,
.double-list .list-controls {
    display: inline-block;
    vertical-align: top;
}

.double-list .list-controls {
    margin: 0 10px;
}

.double-list .list-controls .double-list-controls {
    margin: 1px 10px;
    padding: 7px 0px;
    height: 100px;
    vertical-align: middle;
    display: table-cell;
}

.double-list .list-selected .double-list-dropdown,
.double-list .list-unselected .double-list-dropdown {
    overflow-y: scroll; 
    height: 100px;
    position: static;
    min-width: 180px;
    width: 100%;
}

.double-list-dropdown li i {
    visibility: hidden;
    margin-left: -1em;
}

.double-list-dropdown li.selected i {
    visibility: visible;
}

.double-list .hidden-select {
    visibility: hidden;
    height: 0;
}

.double-list-controls-xs {
    height: inherit;
    text-align: center;
}