They say they follow the W3C standards and they do.
The page: http://www.opera.com/
gets:
This document was successfully checked as XHTML 1.0 Strict!Result: Passed
Congratulations
The uploaded document "default.htm" was successfully checked as XHTML 1.0 Strict. This means that the resource in question identified itself as "XHTML 1.0 Strict" and that we successfully performed a formal validation using an SGML or XML Parser (depending on the markup language used).
:yes:
What about Microsoft?
http://www.microsoft.com/en/us/default.aspx
Errors found while checking this document as XHTML 1.0 Transitional!Result: 176 Errors, 36 warning(s)
:yuck:
The site used for the checking: http://validator.w3.org/
Apples W3C:
http://developer.apple.com/internet/safari/faq.html#anchor13
Interesting comment, this blog page has 2 errors in it. Line 3 and 65.Still, not bad.Mozilla also passed but their page is being sorta browser fascist. A browser views the web, not makes it better.
Also in Opera you can right click on a page a select validate
Yeah that’s what I did.