We think adhering to standards is a good idea. Standards exist in many aspects of life, usually to ensure safety and minimum quality. The W3C (World Wide Web Consortium) provides online validators where any site's markup may be checked. Rolls-Royce is a brand name that oozes quality, they produce luxury cars and ultra-reliable jet engines. This was the W3C's verdict on the Rolls-Royce web site on 7 Dec 2011.