mfencedSfonts9

W3C sample	WIRIS
	$\left(a+b\right)=\left(\frac{\alpha }{\beta }\right)=\left[a+b\right)$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mstyle mathbackground="#88cc88">
    <mfenced>
      <mrow>
        <mi>a</mi>
        <mo>+</mo>
        <mi>b</mi>
      </mrow>
    </mfenced>
  </mstyle>
  <mo>=</mo>
  <mstyle fontweight="bold">
    <mfenced>
      <mfrac>
        <mi>&#x03B1;</mi>
        <mi>&#x03B2;</mi>
      </mfrac>
    </mfenced>
  </mstyle>
  <mo>=</mo>
  <mstyle fontfamily="Helvetica">
    <mfenced open="[">
      <mrow>
        <mi>a</mi>
        <mo>+</mo>
        <mi>b</mi>
      </mrow>
    </mfenced>
  </mstyle>
</math>

Author: Robert Miner and Jeff Schaefer, Geometry Technologies