Board Thread:Support Requests - Getting Technical/@comment-28561824-20180130040628/@comment-9605025-20180130162903

Well, part of the issue is that your example of new tabs is not using Tabber. You are directly using an HTML list. If you want to be able to customize certain instances of Tabber, try the following: Then, on MediaWiki:Common.css, put something like this:
 * -| Test 1 =
 * -| Test 2 =
 * -| Test 3 =
 * -| Test 4 =