Somehow the problems caused due to rounding errors never seem to end.

Another kind of problem which we might encounter very often is the problem caused due to rounding errors in rendering web pages. This happens in cases where the dimensions of an object are defined in percentage(generally objects which change size according to the size of the window). Many times the percentage does not correspond to a given number of pixels and is rounded off. This rounding does not always in the right direction and there end up gaps in places not required.

Opening this link: http://www.positioniseverything.net/round-error.html and try changing the size of your browser window and you will see the gaps. Try it on both IE and Firefox, you will be able to see gaps which shouldnt exist. The webpage is basically a 5 by 5 matrix in which all the blocks should combine seamlessly to give a completely black box, but it doesnt.

The firefox engineering team has been working in order to fix this bug. There has been progress in this field and most likely firefox 3.0 will not have this problem. For those of you who want to take a look at the discussion going on in the firefox forums heres the link https://bugzilla.mozilla.org/show_bug.cgi?id=63336