@joecole_1
I might be wrong with this but as far as I know there isn't too much difference in the folder structure between the systems.
Please correct me if this is not true!
How to use custom css:
1.) Go to the "About" page (vivaldi://about) to check the Vivaldi installation path.
2.) Check the "Executable Path" entry. It should end with \Application\vivaldi.exe. Now close Vivaldi.
3.) Navigate to that Application directory. It should contain a folder named after the current version of Vivaldi, like eg. 1.6.689.40
4.) Open that folder and navigate to the following path: \resources\vivaldi\style
5.) Edit the common.css file with a text editor and add the following code at the beginning of the file: @import "custom.css";
6.) Use the text editor to create a new file in the same directory and name it custom.css. Make sure the extension of the file is actually .css and not .txt (or whatever the macOS equivalent is ^^)
7.) Paste the CSS code to that file and save it. You can use that file from now on to paste other codes that you might find on this forum.
8.) NOTE: Each time Vivaldi updates, you'll need to repeat steps 2 - 5 and copy your custom.css file to the new location.
EDIT: This instruction was written by pafflick but I think that it explains the steps pretty good so I don't care about making a new one.
![Here's mine :grinning[:)]:](https://lh3.googleusercontent.com/-e3CCP7Cen3M/WbB6FdjGLyI/AAAAAAAAPa0/-0lETjzFne01iVEbLdbsWmis9FHehbFRgCHMYCw/s0/2017-09-07_00-42-23.jpg)
