This style guide is deprecated. Please see the revised style guide instead.

This page describes the use of the mediawiki.ui style modules implemented as LESS files in MediaWiki core. Longer term, the goal is to convert controls over to the use of OOjs UI, which is a library available in PHP and JavaScript, and which supplies multiple themes, including a MediaWiki theme consistent with these styles. A living style guide based on OOjs UI can be found here.

Available style guides