Quirks mode

Coments before doctype throw the page into quirks mode. Let's keep it
HTML 5 as much as possible.
CSS syntax error and cleanup

Also format a bit cleaner.
Remove broken external script

This is calling a script that doesn't exist. Ruh roh.
JS syntax errors

Code Project formatting broke some lines, which caused syntax errors
when comments broke into extra, uncommented lines.
HTML comments don't belong here

Inside a script element, HTML-style comments that are line-wrapped
don't parse properly. Changing to proper multiline JS /* comment */
style works.