<!doctype html>
<html>
  <head>
    <title>fractions linethickness</title>
    <meta charset="utf-8"/>
    <style type="text/css">
      @font-face {
        font-family: TestFont;
        src: url("../../imported/w3c/web-platform-tests/fonts/math/fraction-rulethickness10000.woff");
      }
      math {
        /* FractionRuleThickness = 10000 * 1 / 1000 = 10px; */
        font-family: "TestFont";
        font-size: 1px;
      }
      mn {
        font-size: 20px;
      }
    </style>
  </head>
  <body>

    <!-- From the MathML spec:
         'The default value is "medium", "thin" is thinner, but visible,
         "thick" is thicker; the exact thickness of these is left up to the
         rendering agent.'
         'A number without a unit is intepreted as a multiple of the default
         value.'
         
         We follow the suggestion of the MathML in HTML5 implementation note and interpret thin as 50% and thick as 200%.
      -->

    <math>
      <mfrac linethickness="5px"><mn>1</mn><mn>2</mn></mfrac>
      <mfrac linethickness="10px"><mn>1</mn><mn>2</mn></mfrac>
      <mfrac linethickness="20px"><mn>1</mn><mn>2</mn></mfrac>
      <mfrac linethickness="50px"><mn>1</mn><mn>2</mn></mfrac>
    </math>

  </body>
</html>