If you mess up the CSS, you might be no longer be able to restore a working version, because the buttons are no longer visible.
Notes for security:
Open two browser tabs.
In tab 1, open https://www.whonix.org/wiki/MediaWiki:Common.css. Then press "edit".
In tab 2, open https://www.whonix.org/wiki/MediaWiki:Common.css as well. Make your edits in tab 2. See how they look like. And if something totally breaks, so you cannot fix it in tab 2 anymore, go back to tab 1 and just press "Save page".
Impressum | Datenschutz | Haftungsausschluss
Conditions for Contributions to Whonix, then Edit! IP addresses are scrubbed, but editing over Tor is recommended. Edits are held for moderation. Whonix (g+) is a licensee of the Open Invention Network. Unless otherwise noted above, the content of this page is copyrighted and licensed under the same Free (as in speech) license as Whonix itself.