[PG Theme] valign for albums

i cannot find where to modify the vertical alignment for album photos, since i'm writing a lot for Description, the images to the right seems to align vertically centered, and what i prefer to show is images aligned at top.

take a look at my site so you see what i mean.

http://www.acarental.com/fotos/main.php?g2_view=core.ShowItem&g2_itemId=28&g2_fromNavId=x507bf618

what's the file i have to modify? theme.css?

thanks a lot.