Board Thread:Support Requests - Getting Technical/@comment-34517845-20190218233213/@comment-9605025-20190219010946

I believe the problem is with your placement of the tags.

The center tag is deprecated HTML. Deprecated means that it is still supported but is only meant for backwards compatibility. It is suggested that CSS be used to center text instead of this tag.

Additionally, since this is an HTML tag, you have to consider the rendered result. When you write a page for MediaWiki, you are likely to be using a mix of HTML, CSS, and MediaWiki markup. In the case of Wikia MediaWiki wikis, you could also be using some of Wikia's custom markup. Looking at your page, this is certainly the case. While you use the HTML center tag, you are also using the MediaWiki table markup. In order for this content to become a viewable webpage, a rendering engine take your input and interprets the resulting HTML document. During this process, certain components of the MediaWiki markup (and Wikia-specific markup) are replaced with HTML. It is basically a complex "find-and-replace" operation.

Okay, technically, the page is all MediaWiki markup. However, when the rendering engine recognizes HTML or CSS, it just passes it through to the next stage without modification.

Looking at your template, you have a center tag that is outside the table. It's matching tag is inside the table. This means that, upon rendering, the two tags that were meant to be paired are not. In fact, they aren't even on the same level with respect to the HTML tree. Because of this, you now have unmatched opening center tags and unmatched closing center tags in your rendered page.