Web-Based Tools for Optimizing, Formatting and Checking CSS
Stylesheets can get large real quickly, both in terms of length and file size. To ensure that your web pages render correctly and quickly, here’s a compilation of some of the best free, web-based CSS optimizers/compressors, code formatters, and validation services. Check them out and pick the ones that work best for you. [...]
I tried a couple of these, they really didn’t work all that well. I’ll give the others a shot in my spare-time. The two I did try were CSS Optimizer (sucks) and FlumpCake. FlumpCake did a better job, but still messed up my site.