If you're talking about seeing an error "suspect CSS: high bytes" in the source of your page, that has nothing to do with the size of your stylesheet or its fonts or graphics. It means that there's an illegal character in it that the CSS cleaner is rejecting. "High bytes" means that the illegal character has a hex value outside that of the standard ASCII printable characters. Make sure there aren't any "smart quotes" or other Unicode characters in the stylesheet.