http://nicescroll.areaaperta.com/

scrolling for desktop, mobile and touch devices

Nicescroll (as nice scroll for browsers) is a jquery (since 1.5) plugin, for nice scrollbars with a very similar ios/mobile style. It supports DIVs, IFrames and document page (body) scrollbars. Compatible with Firefox 4+, Chrome 5+, Safari 4+ (win/mac), Opera 10+, IE 6+. (all A-grade browsers) Compatible with iOS devices as iPad. So you have scrollable divs for iPad 4.x.