My mind was blown today by Lea Verou’s gallery of pure CSS backgrounds. At first I thought these were larger than using images, but I realized my brain was assuming it was kilobytes, but in fact these are only a few BYTES. Crazy. Exciting. http://lea.verou.me/css3patterns/#

Cool bg but my FireFox — down then I open these bg.
Look at these CSS3 backgrounds http://ecsspert.com/play/useless-css3-patterns/ they are down my browser =)
ps. I am trying to use it for blog… but need many test for perfomance