>A font is a font. But there's no guarantee that the font you specify exists on the browser. It will use the best match it has.

We use a standard font. And, having a font similar to the one we need would do.

>And a pixel is a pixel - but counting the pixels for a specific font size on the server doesn't take into account the resolution on the browser.

This is styled into the page. So, the obtained value should be pretty close to what we need.

>I think the best chance of getting it right is to do the calculation on the browser. That said, I might be wrong about this - it's a pretty confusing subject (at least for me :-} )

At first, I would like to try it from Windows. Do you know of any class I could use at the .NET level to benefit of such a need?