Inexperienced XHTML integrator might get stuck with an IE problem when there is space appeared without any reasons. For example, it can happen if you create a small div block with little height:

<div style="height: 2px;background-color: green;">

It will not be 2px in IE. It will be more. Try this solution:

<div style="height: 2px;font-size:2px;line-height:1px;background-color: green;">

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