drhowarddrfine - 5:05 am on Jan 23, 2013 (gmt 0)
No new web pages have a need for the transitional doctype. The sold purpose of transitional is for web pages being transitioned to strict but still containing old deprecated markup from before 1999! You shouldn't be using old deprecated markup!
The doctype <!DOCTYPE html> puts all browsers into strict standards mode including as far back as IE6. This is the only doctype anyone should use anymore for HTML.