I recently used Telerik Platform (http://www.telerik.com/platform) to build my first mobile game (Wah! http://www.ampzone.com/projects/wah). It was a bit of an experiment as I didn't know how well a game built with HTML, CSS and JS would work out on a mobile device. While I feel I have plenty of room for improvement, overall I think the test proved a success. I'm just going to write about one issue I had while attempting to improve the performance of the animations in my game.
Just a quick post on a simple way to make an element vertically responsive using jQuery. I originally used this for a sidebar which was position:fixed; and so I needed to ensure the height was correct to fit perfectly between an fixed header and footer.
Implementation is fairly simple and includes just 3 sections of code.