JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width" />
    <link
          rel="stylesheet"
          href="https://cdn.jsdelivr.net/npm/@fancyapps/ui@5.0/dist/fancybox/fancybox.css"
          />
  </head>
  <body>
    <div>
      <button id="myButton">
        Start Fancybox
      </button>
    </div>
    <script src="https://cdn.jsdelivr.net/npm/@fancyapps/ui@5.0/dist/fancybox/fancybox.umd.js"></script>
    <script>
      document.getElementById("myButton").addEventListener("click", () => {
        new Fancybox(
          [
            {
              src: "<p>Lorem ipsum dolor sit amet.</p>",
              type: "html",
            },
          ],
          {
            // Your custom options
          }
        );
      })
    </script>
  </body>
</html>