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+<!doctype html>
+<title>Test: srgb 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="match" href="../reference/ref-filled-green-100px-square.xht">
+<meta name="assert" content="the srgb color-gamut is syntactically supported">
+<style>
+div {
+    width: 100px;
+    height: 100px;
+    background-color: red;
+}
+
+@media (color-gamut: srgb),
+       not (color-gamut: srgb)
+{
+    div { background-color: green; }
+}
+</style>
+
+<p>Test passes if there is a filled green square and <strong>no red</strong>.
+
+<div></div>