Help fix wonky cellpadding

First of all I have an HTML question. In order to comply with Flickr "Terms of Service" I am incorporating a link back to the site with each photo. However I want grey borders instead of the colours otherwise associated with links. To do this, I set the photo border to "0" and enclosed it in a single-cell table with cell padding 5, and table background colour set to grey. Can anyone tell me why the bottom padding ends up wider than 5 pixels, and how to fix it? I've experimented with vertical alignment of the "td style", and tried setting the table height to 10 pixels more than the photo, but to no avail.

Feeling tired from the weekend, but managed to go for a nature walk with Mina. We went out Lilac Way and found the lilacs at their peak. I had heard those trails ran as far as Eden Mills, a few kilometres distant, and she confirmed she rode all the way some years ago.

I tend to get caught up in the big picture, so it's nice to go walking with someone who notices little things, the kind of things I like to photograph. So while I snapped photos, she would say, "Oh look at this." It worked nicely. My daughters make good teammates in the same way.

I spotted the hopping leopard frog in a meadow near the Eramosa River, but the buprestid beetle was Mina's find. At least I think that's what it is. These are also known as jewel beetles, because some tropical species are actually incorporated into jewellery. This specimen isn't as showy, but still striking in its own way. It is barely larger than the head of a pin.

I came home with a blowsy, fragrant bouquet of lilacs for the living room.