CheckBox and its text

My checkbox is contained as part of a bigger div. How do I make the checkbox text not overflow out of the div when the div width is smaller than the text of the checkbox?

In other words how do I make the checkbox text wrap and not expand? I tried deriving my own checkbox from AW.UI.Checkbox and did setClass("text","wrap") - but this made the text disappear completely. Changing the size of the span element enclosing the chechbox, check-box, checkbox-text etc didnt make the text appear.

Thanks,
Subha