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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>adoptedStyleSheets shadow</title>
</head>
<body>
  <p>Light DOM paragraph (styled if adopted).</p>
  <div id="host"></div>
  <pre id="out"></pre>
  <script>
    var sheet = new CSSStyleSheet();
    sheet.replaceSync("p { color: teal; font-weight: bold; }");
    document.adoptedStyleSheets.push(sheet);
    var host = document.getElementById("host");
    var shadow = host.attachShadow({ mode: "open" });
    shadow.innerHTML = "<p>Inside shadow</p>";
    shadow.adoptedStyleSheets = [sheet];
    document.getElementById("out").textContent =
      "Shared sheet: " + (shadow.adoptedStyleSheets[0] === sheet);
  </script>
</body>
</html>

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