css/css-values/ic-unit-015.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Values and Units Test: support for the ic unit</title>
<link rel="author" title="Jonathan Kew" href="mailto:jkew@mozilla.com">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#ic">
<link rel="match" href="reference/ch-unit-016-ref.html">
<meta name="assert" content="The ic unit = used advance measure of the “水” (CJK water ideograph, U+6C34) glyph found in the font used to render it">
<style>
@font-face {
  font-family: ASCIIonly;
  src: local(Ahem), url("/fonts/Ahem.ttf");
  unicode-range: U+0000-007F;
}
@font-face {
  font-family: IcTestHalfWidth;
  src: url("resources/IcTestHalfWidth.woff2");
}
div {
  height: 10px;
  background-color: blue;
  margin-top: 10px;
}
.test {
  width: calc(20px + 2ic);
}
.ref {
  width: 100px;
}
</style>
<p>The test passes if there are two blue rectangles of equal length.</p>
<!-- ASCIIonly only supports basic ASCII, and therefore should NOT be used
     to derive the size of the 'ic' unit, which should instead be based on the
     U+6C34 ideograph in IcTestHalfWidth, which is 0.5em wide. -->
<div class="test" style="font: 80px ASCIIonly, IcTestHalfWidth;"></div>
<div class="ref"></div>