<!DOCTYPE html>
<html>
  <head>
    <title>CSS spacing properties</title>
  </head>

  <body>
    <p style="line-height: 30pt;
              word-spacing: 2em;
              letter-spacing: 2em;">
      <math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
        <mrow>
          <mo>(</mo>
          <mtable rowspacing="0pt" columnspacing="0em">
            <mtr>
              <mtd><mtext>row 1 column 1</mtext></mtd>
              <mtd><mtext>row 1 column 2</mtext></mtd>
            </mtr>
            <mtr>
              <mtd><mtext>row 2 column 1</mtext></mtd>
              <mtd><mtext>row 2 column 2</mtext></mtd>
            </mtr>
          </mtable>
          <mo>)</mo>
        </mrow>
      </math>
    </p>
  </body>
</html>