[thelist] CSS selector style inheritance

I'm vexed by what is likely a very simple CSS issue.  I have applied a hover style to my <a> tag... no biggie, the problem is, this style is being inherited by img tags that are hyperlinked.  I have tried specifying:  border-bottom: none; for the img tag and this did not work, nor did it work with the addition of the !important value.  Any ideas?

Stephen Caudill
Web Designer
Municipal Code Corporation
www.municode.com
www.mccimaging.com