removes the vivaldi menu button and the padding on top of tabs, also moves down the tab group indicator so its visible after doing this

vivaldi.md

1. open your vivaldi browser.html file: %LOCALAPPDATA%\Vivaldi\Application\1.0.435.42\resources\vivaldi (replace 1.0.435.42 with your version)

2. add the following code under <link rel="stylesheet" href="style/common.css" />

<style>
  .vivaldi { display: none !important; }
  #tabs-container.top { padding-top: 0px !important;  padding-left: 0px !important; }
  .tab-group-indicator { top: -3px !important; }
</style>

adjust padding-top for #tabs-container.top and top for .tab-group-indicator as necessary if you want space