Change the size and fonts of alternative responses

I couldn’t quite get your question as I don’t see answers going on two lines. I took your quiz and it worked fine.

If you want to change the appearance, you can do it by CSS. The quiz is in div with ID “watu-quiz”, the form has class “quiz-form”, the answers have class “answer” and a span inside. Basically you need to open “view source”, see the generated code and do your CSS changes accordingly. There is no documentation of the CSS structure, but it’s rather simple and you can figure it out by checking the page source.