Want to Remove a:hover bottom border from Header Image

Hey WordPress,

I’ve searched far and wide for this issue and I haven’t been able to find out. Hope you all can help!

I am using WP Andres theme for wordpress 2.9.2. I recently changed the a:hover in my style.css so that the background color changes to orange. At first, there was an orange bottom border showing up whenever I hovered over sidebar images, but I removed it with these codes (not sure which one exactly did the trick, but it was probably a combo of both):

a img {border:0px;margin-bottom: -4px;}
a:hover img {border:0px; border-bottom:0px; background:none; background-color:#ffffff;}

However, those codes did not seem to help the orange bottom border I see when I hover over my header image (header image is set to link to homepage).

I tried this and other similar coding, thinking it would resolve the issue:

#frontphoto a {margin-bottom: -4px; border:0px;padding:0px;}

Unfortunately, it didn’t.

Any help with this would be very appreciated. It’s driving me nuts!

Thanks,
Liz

PS: Here’s the link – https://www.mypoproks.com