Submitted by michael on Thu, 01/01/2015 - 16:16 URL http://www.alistapart.com/articles/seo/ Improve your search engine ranking by harnessing the benefits of well-authored XHTML and using CSS to boost your code-to-content ratio. Tags Improve your search engine ranking by harnessing the benefits of well-authored XHTML and using CSS to boost your code-to-content ratio.