Hi Abba, I can only guess that you mean that in Firefox the type sometimes shifts one pixel after the animation is complete. My experiments show that this is likely something to do with Firefox rounding off relative units such as em units for line-height, vertical padding and possibly font-sizes that are not perfectly rounded to an integer. Rather than specify everything in absolute pixels I prefer to let Firefox quirks be Firefox quirks in this case. You might decide otherwise.
Joel Birch.
