image alignment and corners

[JerryR]

alrighty then, its not often i have a question, but im finding a slight image alignment snaffu. Not the product images, but the 'little arrows' in the boxes. The 'in cart' arrow does not line up to the middle of the line. Im sure its something very simple but i just cant see it. Ive looked at other sites OSC sites and they line up perfectly. I hesitate on the link so you can see what im talking about cause i dont want it to be viewed as a plug for the company but here goes:

http://24.79.40.252/shopcalhon/catalog/default.php

 

The site is NOT live... im nursing it along untill such a time im confdent everything is a-o-kay. Any input would be helpfull, and by all means if you want to critique... please feel free, the more comments (good and bad) the better.

For such a small problem it sure bugs me that i cant figureit out. ARG!