css/css-fonts/font-size-adjust-009.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Fonts Test: font-size-adjust - two-value syntax - using 'cap-height' as the basis for adjustment</title>
<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
<link rel="help" title="2.6 Relative sizing: the font-size-adjust property"
      href="https://drafts.csswg.org/css-fonts-4/#font-size-adjust-prop">
<link rel="help" title="extend font-size-adjust to take a pair of values: <metric> <number>"
      href="https://github.com/w3c/csswg-drafts/issues/6160">
<meta name="assert" content="Test checks that font-size-adjust with the 'cap-height' metric works as expected">
<link rel="match" href="font-size-adjust-009-ref.html">
<style>
  @font-face {
    font-family: test;
    src: url(/fonts/noto/noto-sans-v8-latin-regular.woff);
         /* this font has a cap-height of 1462/2048 units */
  }
  div {
    clear: left;
    float: left;
    font: 56px/112px test;
    color: orange;
    background: orange;
  }
  #test1 {
    color: green;
    background: green;
    font-size-adjust: cap-height calc(1462 / 2048);  /* should cause no change */
  }
  #test2 {
    color: blue;
    background: blue;
    font-size-adjust: cap-height calc(1.5 * 1462 / 2048);  /* should be 1.5 times larger */
  }
  #test3 {
    color: magenta;
    background: magenta;
    font-size-adjust: cap-height calc(0.75 * 1462 / 2048);  /* should be 0.75 times larger */
  }
</style>
<body>
  <p>Test passes if the size of the green rectangle matches the orange rectangle,
     the blue rectangle is longer, and the magenta rectangle is shorter.</p>
  <div>Filler Text</div>
  <div id="test1">Filler Text</div>
  <div id="test2">Filler Text</div>
  <div id="test3">Filler Text</div>
</body>