css/css-values/ic-unit-013.html

<!DOCTYPE html>

<meta charset="utf-8">
<title>CSS Values and Units Test: support for the ic unit</title>
<link rel="author" title="Kiet Ho" href="mailto:tho22@apple.com">
<link rel="help" href="https://www.w3.org/TR/css-values-4/#ic">
<link rel="match" href="reference/ic-unit-013-ref.html">
<meta name="assert" content="The ic unit is equal to 0em if the CJK water glyph's advance is 0.">
<style>
/* The following font contains the CJK water (U+6C34) glyph as a zero-width character. */
@font-face {
  font-family: IcTestZeroWidth;
  src: url(resources/IcTestZeroWidth.woff2);
}

.test {
    font: 20px IcTestZeroWidth;
    width: calc(100px + 10ic);
    height: 20px;
    background: green;
    margin-bottom: 10px;
}

.ref {
    /* Each ic should be equal to 0px because the CJK water glyph in the font is zero-width. */
    width: 100px;
    height: 20px;
    background: green;
}
</style>

<p>The test passes if there are two green rectangles of equal length.</p>
<div class="test"></div>
<div class="ref"></div>