A simple guide about how to use Yeoman to setup your web application, test it and then built it for production.
Its the professional way to build your web app.
How to: Drag and Drop with HTML5
Drang n’ Drop in HTML 5 is supported by: IE9+, Firefox 3.6+, Safari 4+, Opera 11+ and Chrome 12+. But its not supported yet for touch devices like Touch Mobiles and Tablets.
To make things more clear, its not only HTML 5.. Its a combination between HTML 5, CSS 3, and Javascript.