Compression on the CSS least able to improve the performance of your blog page loading and can also save bandwidth. If we are talking speed problem loading page, CSS Compress it's just one of the "seasonings" alone, there is no way as good as anything other than the optimization of the image size.
CSS Drive - CSS Compressor is a free service that provides three different levels of compression mode is Light, Normal and Compact. Or for those familiar with CSS you should use the Advanced Mode to benefit. How it works, try this CSS compression methods reduce the size by simply removing spaces, newlines, semicolons, and comments are not necessary. It would look cluttered, but useful if the CSS file of your website.
To restore the CSS file that is compressed into the original, you can use CSS Uncompress.