Learn Modernizr Library with some quick Demo

If you are reading this article you might already know what Modernizr has to offer but the post aims to give you some working demo instead of a content based approach. If you are looking for a documentation it is available on their website and it offers a step-by-step guide. But while using it, I have found that there was a lack of demo that how to really use its features in real world, so, I thought of creating a demo which you can fork it and keep it for your own reference.