In my opinion, there should be no CSS and no styling at all. The original idea of logical document markup and letting the client render the document is best. It

In my opinion, there should be no CSS and no styling at all. The original idea of logical document markup and letting the client render the document is best. It shouldn't be the content provider's business if and how the content is processed on the client machine. Once you open that door, you just duplicate the kind of aberration we already have. A good WWW provides linked documents in a format that is easy to display and process (e.g. extract links, text, headlines, images, etc.) and makes it impossible to hide content. If you publish a document, it should be publicly accessible.