css/css-color/hwb-004.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Color 4: hwb</title>
<link rel="author" title="Sam Weinig" href="mailto:weinig@apple.com">
<link rel="help" href="https://drafts.csswg.org/css-color-4/#the-hwb-notation">
<link rel="match" href="hwb-004-ref.html">
<meta name="assert" content="hwb with no alpha">
<style>
    .test { background-color: red; width: 12em; height: 6em; margin-top: 0; }
    .ref { background-color: rgb(20% 70% 20%); width: 12em; height: 6em; margin-bottom: 0; } /* hwb(120 20% 30%) converted to sRGB */
    .test { background-color: hwb(120 20% 30%); }
</style>
<body>
    <p>Test passes if you see a single square, and not two rectangles of different colors.</p>
    <div class="ref"></div>
    <div class="test"></div>
</body>