mfracAcss8

This example tests the <i>linethickness</i> attribute with CSS v-unit values.

W3C sample	WIRIS
	$\genfrac{}{}{0.2cm}{}{1}{y+3}\genfrac{}{}{0.3ex}{}{1}{y+3}$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <mfrac linethickness="0.2cm">
      <mn>1</mn>
      <mrow>
        <mi>y</mi>
        <mo>+</mo>
        <mn>3</mn>
      </mrow>
    </mfrac>
    <mfrac linethickness="0.3ex">
      <mn>1</mn>
      <mrow>
        <mi>y</mi>
        <mo>+</mo>
        <mn>3</mn>
      </mrow>
    </mfrac>
  </mrow>
</math>

Author: Robert Miner and Jeff Schaefer, Geometry Technologies