Board Thread:Support Requests - Designing Your Wikia/@comment-1807002-20151122062919/@comment-4731443-20151202153332

Add  to the   rule and create one for   also with.

You will need to move your cell decoration (box-shadow, background [active/inactive], padding, border-radius) from the anchors to the list items for the buttons to take up the whole space rather than have large margins between them. You may need to experiment with borders if you want to keep small margins. I think  looks similar to what you have now.

You'll probably want to adjust your ul.tabbernav padding as well.