SCSS Files
We build the theme by overriding most of Bootstrap's variables then recompile it to keep the file size small.
If you have a custom style or just want to override some of Nifty's variables, please add them to the _variables.scss file.
You can find the file at SCSS/my-custom-styles/_variables.scss
If you make changes directly in the CSS and/ or SCSS-files from Nifty,
it will be hard to update if we release an update.
So we would recommend to create a new CSS/ SCSS-file for this purpose.