Here's a bookmarklet to try it out on any site (paste into the URL bar, hit enter):

    javascript:(function(d,l){l=d.createElement("link");l.rel="stylesheet";l.href="https://github.com/tlrobinson/evil.css/raw/master/evil.css";d.body.appendChild(l)})(document);

Two Chrome subprocesses jumped to 99.9% CPU usage after running that on this page. Awesome. (Chrome 9.0.597.102 on OSX 10.6)

i was just injecting JSes with bookmarklets. got to see CSS tricks too, thanks for sharing this. nothing blinks on HN though ;)