MediaWiki has many extension systems. There is a way to add javascript code or CSS upon page load, and to configure for this to happen independently for each user or site-wide. See [https://www.mediawiki.org/wiki/Extension:Gadgets MediaWiki's documentation]. | MediaWiki has many extension systems. There is a way to add javascript code or CSS upon page load, and to configure for this to happen independently for each user or site-wide. See [https://www.mediawiki.org/wiki/Extension:Gadgets MediaWiki's documentation]. |