css/mediaqueries/mq-gamut-002.html

<!doctype html>
<title>Test: p3 color gamut</title>
<link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net/">
<link rel="help" href="https://www.w3.org/TR/mediaqueries-4/#color-gamut">
<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/276">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<meta name="assert" content="the p3 color-gamut is syntactically supported">
<style>
div {
    width: 100px;
    height: 100px;
    background-color: red;
}

@media (color-gamut: p3),
       not (color-gamut: p3)
{
    div { background-color: green; }
}
</style>

<p>Test passes if there is a filled green square and <strong>no red</strong>.

<div></div>