bbpress layout

Sorry if this is a noob question i am new to WordPress but i cant seem to change the layout for the BBpress forums 🙁

if you look at the picture below the sub categories to the forum are being added side by side like …..

–GENERAL
–HARDWARE
–GAMING
Counter Strike, Heroes of the Storm

I would like it to go….

–GENERAL
–HARDWARE
–GAMING
–GAMING
-Counter Strike
-Heroes of the Storm

i have attached a picture as well