How to create the icon bar at the top right of this page

I’ve tried various ways of creating a right aligned menu bar or nav bar to look like the one in the top right of this forum’s pages, but can’t yet make it look any good. I’ve tried three columns with offsets, and grid with margins to get it over to the right.

In Sticky content I’m using modals and buttons with font awesome labels so only the icon is showing but of course modals and buttons come in the three standard sizes, whereas on this page they are pretty much the size of the icon itself.

Apart from anything else, the icons on this page appear just fine in mobile view.

Can it be done in Foundry, and how please?

As always, feedback would be very welcome.