Here is an example link to see the issue:
I've noticed there is a strange empty 1px line at the bottom of the box. It seems to occur when Firefox tries to resize an image with an odd number of lines. Has anyone else encountered this problem? If so, how did you resolve it?
Update: Apologies for the confusion earlier. After reevaluation, I have determined that this issue only affects MacOS's Firefox (versions 10.7 and 17.0). The display looks fine on Windows systems.