Direct Manipulation Using JavaScript and CSS

Interesting implementation on drag and drop inside a browser done via Javascript and CSS. Direct manipulation, particularly drag and drop, is under utilized in desktop applications and is almost non-existant in web applications. The following examples demonstrate that direct manipulation is possible in modern browsers. Each example is a proof of concept. I'm answering the question Can I do this? without considering the question Should I do this?. That said, some of these examples are pretty impressive, so it's nice to think that sometimes the answer will be Yes, you should.