Om nah hoo pez nyeetz, Gunnar Bittersmann!
<!DOCTYPE HTML>
Großschreibung ist bäh! ;-)
Kleinschreibung auch. In polyglottem HTML5 muss es<!DOCTYPE html>heißen.
In der Spezifikation heißt es:
A DOCTYPE must consist of the following components, in this order:
1. A string that is an ASCII case-insensitive match for the string "<!DOCTYPE".
2. One or more space characters.
3. A string that is an ASCII case-insensitive match for the string "html".
4. Optionally, a DOCTYPE legacy string or an obsolete permitted DOCTYPE string (defined below).
5. Zero or more space characters.
6. A ">" (U+003E) character.
In other words, <!DOCTYPE html>, case-insensitively.
Matthias
