page.html

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <meta name="color-scheme" content="light dark" />
    <title>Raw HTML</title>
    <meta property="og:title" content="Raw HTML" />
    <meta property="og:type" content="website" />
    <meta name="twitter:card" content="summary" />
    <style>
      /* Pagez's theme.css */
    </style>
  </head>
  <body>
    <main>
<svg viewBox="0 0 10 10" width="40"><circle cx="5" cy="5" r="4" /></svg>
<iframe src="https://example.com/embed" title="An embed" height="160"></iframe>
<script>console.log("raw HTML, written as it is");</script>
</main>
  </body>
</html>