Screenshot
Steps to reproduce:
This issue was found specifically on this page for the second image:
http://en.wikipedia.beta.wmflabs.org/wiki/19thMarChrome?veaction=edit
The original settings for the image was Right,Basic and Border.
When I changed the image position to "Centre", it appeared distorted with irregular highlight box for the image
See the screenshot attached:
Test Environment: http://en.wikipedia.beta.wmflabs.org/
: Chrome Version 26.0.1410.65 & FF 25
OS: MAC OS X 10. 8. 5
Version: unspecified
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=62590
https://bugzilla.wikimedia.org/show_bug.cgi?id=66228
Attached: