Select Multiple Html with columns - possible?

Answer 1

Just a different approach - FIDDLE.

Used code from the jQuery 'selectable' and adapted it.

Used divs to create the columns.

CSS

#holder .ui-selecting {
    background: #e0e6fa;
}
#holder .ui-selected {
    background: #d1daf4;
    color: white;
}
#holder {
    list-style-type: none; 
    margin: 0; 
    padding: 0; 
    width: 270px; }
div {
    display: inline-block;
}
li div:first-child {
    width: 100px;
    color: red;
    padding: 3px 3px 3px 10px;
}
li div:nth-child(2) {
    width: 120px;
    color: blue;
    padding: 3px 3px 3px 10px;   
}