CSS- target text links with bottom border on hover, but image links with no border

Question

I\'d like to be able to target text links in CSS with border-bottom on hover, but have all links that are images not have a border on hover. So:

Answer 1

This might work

a img {position:relative; top: Npx}, where N is the hover border thickness

This would make the image cover the border, although it would be displaced downwards a pixel or so permanently.