No way to get rid of right margin on images

[malaney]

Hello and thank you for such a wonderful library. In trying to do layout for a catalog I noticed that all of the images that I bring in with an img tag have a built-in 10px right margin. I can't seem to get the image width to be the exact same width as the containing td tag.

<table><tr><td background-color="red"><img src="http://path/to/img" /></td></tr></table>

I've tried using margin attributes on both the img tag itself as well as the containing td tag, but to no avail. Is there anything I can do to get rid of this margin?