If you are working on flex mobile project. You would be facing the feature of scrollbars appearing whenever you scroll through the list or widget with-in the scroller component. If these has become a problem for you and you need to get rid of the feature follow the steps mentioned here: Right a new script extending from the scroller Observe vertical and horizontal scrollbars tags which are auto generated modify them and insert the property alpha=0 Include this skin in your scroller and you are done
My Opinion.