Test italic/upright text
<math xmlns="http://www.w3.org/1998/Math/MathML"> <mover> <mi>xxx</mi> <mo>¯</mo> </mover> <mo>=</mo> <mover> <mi mathvariant="italic">xxx</mi> <mo>¯</mo> </mover> </math>
Author: Design Science, Inc. (D. Doyle, R.Miner)