Board Thread:General Discussion/@comment-24739709-20151026190758/@comment-168424-20151027175143

Pinkgirl234 wrote: Kirkburn wrote: It is quite unlikely we would add support for marquee, to be honest - but both CSS and JS provide options for animation. CSS animation in particular is likely a better replacement as it is simple, while often smoother and more flexible. Well Plants vs. Zombies Wiki actually uses some marquee MediaWiki pages. Right now I am researching for Marquee JavaScript codes, and if these are effective for Wikia use, then how does one use marquee on a specific area without affecting other areas? Like for a certain page? (Take note I only search for safe JavaScript code.)

There is a difference between what JS affects and where it needs to run. If you want all users to see the JS in action, it needs to be in sitewide JS pages. As for restricting the effect to a specific page, you can do that with JQuery, since each page should have a body class based on its name.