Rise Code Not Working

Hello 

So I'm trying to get rid of the percentage progress bar on a Rise Course I've created to have it look more like an information page, rather than a course. 

I've recently learned you can do that by tweaking the CSS code on the 'main.bundle.CSS' file  (your module name > content > lib > main.bundle.css). 

I've followed the instructions on the manual below entitled 'Remove Progress Bar'. 

Advanced Rise Tips - Remove Progress Bar & Menu Progress Icons | Rise 360 (articulate.com)

I follow all theses steps to a tee, and still the percentage progress bar will not disappear. 

Any tips on coding, exporting, extracting files the right way etc. to ensure the code works would be greatly appreciated!