The idea behind this event is to promote Web Standards. Plain and simple. This includes proper use of (x)html, semantic markup, a good hierarchy structure, and of course, a good ‘ol play on words. It’s time to show off your <body>.Think before you style!
Happy CSS Naked Day 2011!
As per the excerpt on Dustin Diaz’s website devoted to CSS Naked Day, the concept is about promoting semantic markup for website content.