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Test Info:

<!doctype html>
<html class="reftest-wait">
<title>CSS Test (Conditional Rules): Rule application is immediate on condition change</title>
<meta name="assert"
content="Test passes if rules within @media are applied when its condition changes to match.">
<link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact">
<link rel="match" href="at-supports-001-ref.html">
<style>
iframe {
border: none;
width: 200px;
height: 100px;
}
</style>
<p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p>
<iframe id=frame src="support/at-media-dynamic-001-inner.html"></iframe>
<script>
var handler = function () {
document.getElementById("frame").style.width = "100px";
document.documentElement.classList = "";
};
document.addEventListener("TestRendered", handler);
</script>