buttons in personality quiz

I have a personality quiz that has been implemented/embedded in both a WordPress blog and a proper website. For some reason, the 'buttons' to choose an answer have become an issue: they can only be selected over the outside edges. This happens also when I am trying to edit or view the content in Lumi. Does anyone know what might have gone wrong, or at least how I might fix it?  
I did not build the quiz myself, that was a former colleague, so I am hoping not to have to reconstruct the whole thing again! 

Thanks!

Summary: 
personality quiz technical issue
Content types: 
BV52's picture

Hi SusEwing,

Can you please share the content?

-BV

Actually, I can't any more.  It was getting super troublesome for our users so I rebuilt the whole personality quiz.  The new one is here:  https://www.hul.uni-hamburg.de/en/schreibzentrum/schreibberatung/writing...

in case it helps anyone else:  the buttons to choose from no longer worked properly: one could select only by clicking on the very outer edges of the button.