Inline img tags by default is positioned such that it has an additional bottom spacing relative to its parent block element. If the parent block element e.g. div have zero padding and the img have zero margin, the img height will not equal to the div height as the additional spacing will push the parent […]
In designing layouts with CSS for web pages, centering divs is a very common problem that I cme across almost all the time. And the reason for this is that IE7 does not confirm to the width attribute standards.
If your HTML table is not listening to your margin: 0px commands, then border-collapse could be your answer.