MiniGlobalNav

MiniGlobalNav reduces the size of the global navigation bar from 55px to 32px tall.

Usage
Add the following line to your global.css page (for personal use on all wikis). It must be at the very top of the page (with any other @import rules you may have) to work.

You can also copy the contents of the MediaWiki:MiniGlobalNav.css page to your CSS page, if you prefer.