Only available for desktop users for now, Vivaldi 4.1 brings a new way of managing open web pages, namely accordion tabs, as well as command chains. Now, opening a few websites and tiling can be done in a single operation, but more than 200 browser commands are available to use in multiple actions.
https://www.notebookcheck.net/Vivaldi-4-1-now-available-with-accordion-style-stacks-user-definable-command-chains-and-more.552669.0.html
Zoomers can't into design.
Care to be a bit more specific? What do you want in terms of design? Round corners? :D