1
vote
3answers
226 views

Is my Document Type Definition Still Up to Date?

currently all my php generated rich html webpages start with this line, which I have been adding to my tempaltes YEARS ago... <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ...
15
votes
7answers
1k views

HTML and “quirks” vs. “standards compliance” modes: Explain, and tell us why we should care?

What is the difference between "quirks" mode and "standards compliance" mode, when building HTML web pages? How to tell when operating in one mode, vs. the other? Why should people – i.e. ...