Hey, fellows!
I recently run into an issue regarding the toggle state of my button as follows,

I want to create the toggle effect so when I click E-learning or Fun work button, it will show different contents.
here is what I did: I have create three buttons: E-learning button, Fun work button and the big rectangular button with yellow borders to house the other two buttons.
However, when I preview the web, it appears that the big rectangular button is the only button I can click, it kinda overlaps the other two buttons. I'm kinda stuck here. Does anybody have any ideas about how to resolve this problem? I cannot group them because it cannot be hyperlinked once I group them.
Any tips are truly appreciated!