Can't get rid of border around transparent image

I figured out how to get a transparent background for each image.  Now...

How do I get rid of the border around each of the coin images?  I've searched and tweaked and tweaked some more, and combed over every setting I could think of, and I can't find out where to turn this off.

Thanks

I'm hoping there's someone out there reading this who can help me with this, it's very frustrating and I'm about at my wits end with this. It's driving me insane! I've searched the web, I've searched Flexicontent's support forums, and I can't find one thing that even remotely resembles what I want to do. I hate to beg, but if anyone knows what the answer is to hiding or removing the grey border around each image, I'd surely appreciate hearing from you! Thanks in advance!

hello
please be carfull we provide free component free support ... you ask 22h later ... and do a bump after 15h in a week-end ...
any pro and paid support waiting 48h to replie ... 
you can be frustrate but be respect that we have some other work (paid ) and family 
you need to check your css inspector to check your image field to add a border:0;
add this in your css

I am sincerely sorry if I caused any inconvenience, that was not my intention.

I appreciate you getting back to me, but was starting to wonder how long it would be before I was eligible for assistance.  I didn't realize I needed to wait up to 48 hours or more.

The change you suggested worked for me, thank you very much.

no problem i prefer to be transparent
we do our best to propose a good product and support !