Going off the example here <http://jqueryui.com/demos/autocomplete/#custom-data>
I'm wondering how to add a style to the `ul` wrapper when using `_renderItem()`:

```
    .data( "autocomplete" )._renderItem = function( ul, item ) {
        return $( "<li></li>" )
            .data( "item.autocomplete", item )
            .append( "<a>" + item.label + "<br>" + item.desc + "</a>" )
            .appendTo( ul );
    };

```