Depending on how many notes or messy modifications you make to your cascading style sheets, you might be about due for a little compression. By shrinking you external CSS files, you can save the bandwidth it takes to download them, each time somebody visits your web site.
Now how much optimization should you do? The CSS files should be small enough to load quickly, however readable enough to where you know what does what, where, and why. You have to balance size with readability.
Here are three effective online tools to help optimize and shrink CSS files:
By using any of these three solutions, you can reduce the CSS code size and make your web pages load faster. They all allow you to choose from multiple degrees of compression, and they are all very quick too.