Tool to parse and compare two CSS stylesheets [closed]

Here’s what I ended up doing, in case someone else has the same problem:

1. I used CSSTidy to “normalize” the two stylesheets I wanted to compare. Normalization in my case meant splitting multiple selectors and sorting selectors and properties. An online version of CSSTidy is available here.
2. After this, I used the CSS Comparer tool from Alan Hart to find out differences between the two stylesheets.

This did the job for my specific requirements.