Content creation

Is the content accessible? I previewed a couple of samples but none of them let me access the content via keyboard.

Hello,

I use h5p in my wordpress-blog and i try to install some quizzes...lately, i made a new image-pairing game, which can be seen here: 

https://www.kamaha75.de/2020/03/05/maerchensprueche-das-quiz/

You will see my problem immediatly:
the cards are shown as two long columns. If i try to take the first card on the left side it is impossible to put it on the last card on the right side, for the "windows"/ view does not move. I can only pair the cards i see on the screen...