Hmm, the document doesn't even validate: http://validator.w3.org/check?uri=http://playground.thesedays.com/ninja/&charset=(detect+automatically)&doctype=Inline&

Hmm, the document doesn't even validate: http://validator.w3.org/check?uri=http://playground.thesedays.com/ninja/&charset=(detect+automatically)&doctype=Inline&group=0 http://validator.w3.org/check?uri=http://playground.theseday... While the importance XHTML validity is arguable dubious, I would hope that at the very least a company trying to show off its ninja skills to prospective web developers would spend the extra effort.