MediaWiki is a free open source wiki application written in PHP, originally created for use on Wikipedia. We use the default Vector skin, but there was just one thing missing. We wanted a way to add links to each section of a wiki page, using the “pilcrow” symbol: ¶.

Assuming you’ve set your wiki up at /wiki, MediaWiki lets you enter custom JavaScript by visiting the following link:

Edit the page and enter the following JavaScript code:

MediaWiki also lets you enter custom CSS styles by visiting the following link:

Edit the page and enter the following CSS code: