chromium/chrome/browser/resources/nearby_share/nearby_share_dialog.html

<!doctype html>
<html dir="$i18n{textdirection}" lang="$i18n{language}" chrome-refresh-2023>
  <head>
    <meta charset="utf-8">
    <base href="chrome://nearby">
    <link rel="stylesheet" href="chrome://resources/css/text_defaults_md.css">
    <link rel="stylesheet" href="chrome://resources/chromeos/colors/cros_styles.css">
    <link rel="stylesheet" href="chrome://theme/colors.css?sets=legacy,sys">
    <link rel="stylesheet" href="chrome://theme/typography.css">
    <style>
      body {
        background-color: var(--cr-card-background-color);
        margin: 0;
      }
    </style>
  </head>
  <body class="jelly-enabled">
    <nearby-share-app></nearby-share-app>
    <script type="module" src="app.js"></script>
  </body>
</html>