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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-scoping/host-nested-001.html - WPT Dashboard Interop Dashboard
<!doctype html>
<title>CSS Test: :host doesn't match nested shadow hosts.</title>
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
<link rel="match" href="reference/green-box.html">
<style>
#host {
width: 100px;
height: 100px;
}
</style>
<p>Test passes if you see a single 100px by 100px green box below.</p>
<div id="host">FAIL</div>
<script>
let root = host.attachShadow({ mode: "open" });
root.innerHTML = `
<style>
div {
background: green;
width: 100px;
height: 100px;
}
:host { background: red !important }
div:host { background: red !important }
</style>
<div id="nested-host">FAIL - nested shadow host</div>
`;
root.getElementById("nested-host").attachShadow({ mode: "open" });
</script>