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>A component from a URL</title>
    <meta property="og:title" content="A component from a URL" />
    <meta property="og:type" content="website" />
    <meta name="twitter:card" content="summary" />
    <style>
      /* Pagez's theme.css */
    </style>
  </head>
  <body>
    <main>
<sl-button><p>Click</p>
</sl-button>
<style>
  sl-button:not(:defined) {
    visibility: hidden;
  }
</style>
<script type="module" src="https://cdn.jsdelivr.net/npm/@shoelace-style/shoelace@2.15.0/cdn/components/button/button.js"></script>
</main>
  </body>
</html>