Hiding correct answers in quiz review - HTML5
I have quizzes which are mostly 'fill in the blank' answers. When learners review the quiz I only want to indicate any incorrect answers given and keep the correct answers hidden. I could work around this when publishing in swf but in HTML5 learners are able to reveal the correct answers.
A similar question has previously been asked and a solution offered was to alter the css\CPLibraryAll.css
I'm not sure if the code is meant to prevent this or to only prevent the green tick boxes from being displayed. Does anyone know if the code should prvent the learner from being able to reveal the correct answer or if not is there a way to prevent this?
Code :

