delete css

git-svn-id: https://plugins.svn.wordpress.org/hh-quizzes/trunk@944162 b8457f37-d9ea-0310-8a92-e5e31aec5664
alles löschen

git-svn-id: https://plugins.svn.wordpress.org/hh-quizzes/trunk@944163 b8457f37-d9ea-0310-8a92-e5e31aec5664