Google Code-in

Error messages should be wrapped in a container which allows it to style or modify them with CSS and/or JavaScript. Currently, some error messages aren't wrapped in such. Your task is to add a css class, like mw-error-cannotundelete, to the usage of the cannotundelete interface message.

Tipps:

• Github is your friend for code searches, if you don't want (or can't) use grep
• See how it was done for "cannotdeleteto" see how this could be done