Window border, native or not, should be an option rather than hacking CSS
The CSS hack in the above topic is better than nothing, but definitely not ideal that one must re-apply manually after every browser update.
Believe it or not, some people actually like to see where their windows end when overlapping others rather than blindly hunting with the mouse pointer for a drag border. Make it an in-browser option to set a border, whether it's CSS or native. Please.
Microsoft's 'wisdom' wrt. window styles post-Win7 is... questionable, to put it kindly.
Absolutely love Vivaldi otherwise. It's now my default browser
@Russtopia In case of Vivaldi, CSS is the native way to make borders. And what you described as hack, is really a simple modification/addition to the browser, which enables you to improve your experience, while not being dependent on the priorities of the developers. But I agree, there should be the ability to let custom changes persist between updates.
Please request it.
If you think a feature is useful and missing in Vivaldi, please make a request.
How to make a feature request for Vivaldi
If you think your problem can be solved by a missing feature, please add a request at https://forum.vivaldi.net/category/48/features-requests in the corresponding thread for your browser version.
Add one line in bold as a short title for the feature and 2-3 lines to describe the wanted feature.