<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>[ #553468 ] Doesn't warn about <u> in XHTML strict</title> </head> <body> <p>Tidy doesn't complain about <u>underlining</u> in XHTML strict documents</p> </body> </html>