Rimantas 13 December 2005 Every XHTML doctype (without the xml prolog declaration makes browsers display in standards mode. However, only Strict HTML does the same. But this reason isn’t a reason to use XHTML. Wrong ;). IE will use “standards” mode with Transitional and Frameset DTDs too, if URL of DTD is present . The same applies to the Opera . Things are a bit more complicated with Gecko and its three modes .