http://www.kernelthread.com/miscellaneous/devnagri.html

This is a sample URL that you can click on to see how the end of result of his styling is. This is by no means the best of his pages. Perhaps one of his simplest.

My goal for this page is to emulate the bottom part and the nice purplish color

In the process, I will post here below copies of his style sheets from his web site verbatim. This should work as example style sheets.

I think it is best to learn style sheets by looking at working examples. This usually true in any language be it Java, or c++ or CSS once you have a basic understanding of the concepts. It might be a stretch to take it to the natural languages perhaps.