XML Schema Validator

Location:	https://schneegans.de/asp.net/utf-8/
Redirect:
Well-formed:	True
Valid:	True
HTTP status code:	200 OK
HTTP Content Type:	text/html; charset=utf-8
HTTP encoding:	utf-8
XML encoding:	utf-8
Used encoding:	utf-8
Public Identifier:
System Identifier:
Validated as:	XHTML 1.0 Transitional

You should specify the same value for the 'lang' and 'xml:lang' attributes. (2:2)
```
<html lang='de' xmlns='http://www.w3.org/1999/xhtml'>
 ^
```

If you think the validation result is incorrect or if you have difficulties to understand the messages, feel free to write me an e-mail.