Board Thread:Support Requests - Designing Your Wiki/@comment-29081836-20170730162415/@comment-9605025-20170731084912

You need to use CSS. However, you must be certain to not violate the customization policy. Under this policy, you are not allowed (or have limited permission) to modify certain portions of pages such as, but not limited to, the global navigation bar, the global footer, certain components of the right rail, and the header (page title, breadcrumb links, edit button, etc.). That being said, you will probably be safe doing the following. Be sure to use double quotes if the font name has whitespace in it.