Steps to reproduce:

1. Clicke "vote" and click the checkbox.
2. Click "Change My Votes".

Expected result:
The "The changes to your votes have been saved." message should look like a success message.

Actual result:
It looks like an error message.

When you change your preferences, the messange is green, but has a red border.

As the default skin is supposed to look like MediaWiki, both messages should look like class="successbox" in MediaWiki.

Version: wmf-deployment
Severity: enhancement
See Also:
https://bugzilla.mozilla.org/show_bug.cgi?id=780675