upstream-zulip/tools/tests/test_template_data/test_template2.html

<!-- test -->
      <!DOCTYPE html>
      <html>
      <head>
          <title>Test</title>
          <meta charset="utf-8" />
          <link rel="stylesheet" href="style.css" />
      </head>
      <body>
        <div id="below_navbar">
          <p id="intro">
            <span id="hello_{{ message }}">Hello world!!</span>
            This is a test file for checking correct working of duplicate id detection module.
          </p>
        </div>
      </body>
      </html>