I can not seem to find a doctype that the W3 Validator explicitly says that the page validated is "XHTML 1.1 Strict". If you change the title it will not link at the top in yellow to the standard used. The W3's Doctype declaration fails to say strict when it validates a page.
encyclo
7:12 pm on Apr 18, 2005 (gmt 0)
There is no such thing as "XHTML 1.1 Strict". XHTML 1.1 is for use as an XHTML module (for example combined with other markup languages such as MathML or SVG). It is often misused and should not be seen as a replacement for XHTML 1.0. It can be used as a standalone document, but in most cases it is better to use XHTML 1.0 Strict.
The correct doctype for XHTML 1.1 is as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">