Even when I was looking around, I could see that there were a lot of resources. I'd like to see a very short app - 50 lines of code - that shows off the main fe

Even when I was looking around, I could see that there were a lot of resources. I'd like to see a very short app - 50 lines of code - that shows off the main feature of the framework. More importantly, I need this to be one of the links on the top of the page if it's not on the home page.