Board Thread:Support Requests - Getting Technical/@comment-5952365-20150312185819/@comment-4189499-20150313031026

Basically, on your own user page, you can change anything within the editable field of the page using a combination of wikitext and a restricted set of HTML (including span and div tags with full CSS support). If you want to add things outside the normal text area just on your userpage, you'll need to use JavaScript to add the extra elements, and you'll need to either be an admin on that wiki or able to convince an admin to add the JS for you. If you want to change the way things look on the whole wiki, and if you're an admin on that wiki, you can change it using Special:CSS on your wiki. You can also add extra elements wiki wide using JavaScript. However, you have to be careful with what you customise, both with CSS and JS, as Wikia's ToU forbids the modification of certain elements such as the Global Navbar and the changing of the right sidebar (unless it's to add an extra element, which is allowed).