I'm not a developer but just a Vivaldi Community user which likes to fiddle with CSS. You agree to use anything contained here at your own risk. Support may not be guaranteed.
What is Vivaldi? A new browser launched several years ago based on Chromium/Blink - which is actually a great engine - to be the spirtual successor of Opera Presto which original development was halted after the acquistion of the company. Why is cool? Where ALL the browser now tends to look alike the same and oversimplified - Vivaldi point to be unique, user-centric and has a great support from its developers and community users.
In this small repo I'll list the mods I currently use on Vivaldi Browser but before doing anything please READ the help guide.
The code is usually updated on Vivaldi Snapshot when it reaches Release Candidate status (RC) so it should work with latest Vivaldi Stable too.
Few lines are actually tailored around my Vivaldi installation but most code should work with any setup vivaldi installation. Only pick the code you actually need. If in doubt, ask to the great modding community for help.
For this version, I merged again the code into a single CSS but is still divided in sub-sections with comment lines. Hope is quite clear :)
For JS mods you should check or ask in the modification thread. I used to have a list here but is quite outdated.
By the way, enjoy vivaldi and its community. Join to the forum if you didn't that yet ;)