mnSfont10

W3C sample	WIRIS
	$5+5+5+5+5$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mstyle fontweight="bold">
    <mrow>
      <mn>5</mn>
      <mo>+</mo>
      <mn fontweight="bold">5</mn>
      <mo>+</mo>
      <mn fontweight="normal">5</mn>
      <mo>+</mo>
      <mn fontstyle="italic">5</mn>
      <mo>+</mo>
      <mn fontfamily="Helvetica">5</mn>
    </mrow>
  </mstyle>
</math>

Author: Robert Miner and Jeff Schaefer, Geometry Technologies