There is a problem with vertical alignment of images in the CSS table. It is infrequently visible - only in cases where an image in a gallery has smaller height than others.

For an example, see the 12th image at http://www.vacilando.eu/test - it is a bit less high than the rest.

How to center it vertically in its field?

I tried using vertical-align:middle; all over the place, but it does not have any effect.