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<!DOCTYPE html>
<title>Test "standalone" value of display member + media feature</title>
<link rel="help" href="https://w3c.github.io/manifest#display-member" />
<link rel="help" href="https://w3c.github.io/manifest/#the-display-mode-media-feature" />
<link rel="help" href="https://w3c.github.io/manifest/#dom-displaymodetype-standalone" />
<link rel="manifest" href="resources/display-member-media-feature-standalone.webmanifest" />
<script src="resources/display-member-media-feature-manual.js"></script>
<meta name="viewport" content="width=device-width, initial-scale=1">
<h1>Testing support for "standalone" value of display member + media feature</h1>
<style>
.fail {
background-color: red;
}
@media all and (display-mode: standalone) {
body {
background-color: green;
}
}
</style>
<script>
const standalone = matchMedia("(display-mode: standalone)");
standalone.onchange = () => {
if (standalone.matches) {
document.body.classList.remove("fail");
}
}
if (!standalone.matches) {
document.body.classList.add("fail");
}
</script>
<p>
To pass, the background color must be green after installing.
</p>
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