A simple CSS-only system for smooth momentum scrolling in web apps across all sizes and devices.
After much trial and error in a large-scale responsive web app, I've found this to be the most successful technique for implementing consistent momentum scrolling while allowing for fixed headers and footers. Hope it helps!
Either copy the .outside-scroller and .scroller classes into your Sass, or use the whole thing as a starting point for your responsive web app.
https://dl.dropboxusercontent.com/u/2040627/smoothscroll/index.html