passed

mid1

mid

W3C sample WIRIS
x
<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mo>&#x2223;</mo>
  <mi>x</mi>
  <mo>&#x2223;</mo>
</math>

Author: Design Science, Inc. (E. Cannon, E. Tabacman, R.Miner)