I've already achieved this on my iPhone app, but I want to know if it's possible on an HTML page, maybe using CSS effects or similar.  

![alt text](https://i.stack.imgur.com/0oFUH.png)

As you can see, the current view is split, the bottom part is moved down, and another view is revealed underneath. I have a page I'd like to try this on. Any ideas if this is possible, and any specifics as to how I can do it? I'm *quite* new to HTML coding, so please take it easy on me. :)

Thanks in advance!