Changing the position of the next / back button

I would like to know where I can change the location of the next / back button. I would assume it would be within the css files? but i have yet to come across the correct one. Any help would be appreciated. Thanks

If you are refering to the

If you are refering to the back/next buttons when you take a quiz the css are in profiles/opigno_lms/themes/platon/css/styles.css

You will have probably to adapt the template in order to have the html markup in line with what you want to do.