Intence is a new UX concept and a JavaScript library which reflects the scrolling state in a simple and intuitive manner. It highlights the scrollable area depending on the scrolling amount, thus efficiently explaining to a user what exactly can be scrolled, and is there much to scroll. Intence is suggested as a scrollbar replacament for a general designation of a scrollable area. The library is written in vanilla JavaScript and has no dependencies.
see http://asvd.github.io/intence/ for demos, detailed description and usage guide
Follow me on twitter: https://twitter.com/asvd0