style_document.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<html>

  <head>

    <meta charset="utf8">

    <title>Test style document</title>

    <!-- Any copyright is dedicated to the Public Domain.

       - http://creativecommons.org/publicdomain/zero/1.0/ -->

    <style>

    body { color: lime; }

    </style>

    <link href="style_document.css" rel="stylesheet">

    <script>

      "use strict";

      const s = new CSSStyleSheet();

      s.replaceSync("body { background-color: blue }");

      document.adoptedStyleSheets.push(s);

    </script>

  </head>

  <body>

    <iframe src="https://example.org/browser/devtools/shared/commands/resource/tests/style_iframe.html"></iframe>

  </body>

</html>