Although I think this is an interesting exercise, I need these behaviours to work the same across all browsers. This gets even more complicated within JavaScrip

Although I think this is an interesting exercise, I need these behaviours to work the same across all browsers. This gets even more complicated within JavaScript apps where the state of the components is something I need to have fine grained control over. Really cool and good to see what how powerful CSS3 is, but not sure how useful it is, particularly when I need this behaviour working on older mobile browsers.