Turn off black background on registration email confirmation

I resolved my earlier issues everything is working fine.  However, their is a black background on the email message at confirmation that I can not set to a neutral (white) color.  Any ideas?

Thanks a bunch.

Rick

Hi,

There doesn't seem to be any form in your account. Can you please give us the link to the form so we can further investigate the issue?

I will wait for your reply,
Regards.