The myth of content and presentation separation
“One of the hallmark attributes of web standards-based design is the concept that proper use of semantic (X)HTML and CSS completely abstracts the presentation of a site from its content. One key real-world benefit of this separation is that come redesign time, one only needs to change or replace the CSS stylesheet, and needn’t lay so much as a finger upon the hallowed grounds we call markup. I’m here to say that this mantra isn’t much more than a fairy tale.” (Jeff Croft)