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>
      <a
         data-fancybox="gallery"
         data-src="https://lipsum.app/id/2/1024x768"
         data-caption="Ut semper, justo eget"
         >
        <img src="https://lipsum.app/id/2/200x150" />
      </a>

      <a data-fancybox="gallery" data-src="https://lipsum.app/id/3/1024x768" data-caption="Vivamus massa justo">
        <img src="https://lipsum.app/id/3/200x150" />
      </a>

      <a data-fancybox="gallery" data-src="https://lipsum.app/id/4/1024x768" data-caption="Aenean consequat auctor posuere">
        <img src="https://lipsum.app/id/4/200x150" />
      </a>
    </div>
    <script src="https://cdn.jsdelivr.net/npm/@fancyapps/ui@5.0/dist/fancybox/fancybox.umd.js"></script>
    <script>
      Fancybox.bind('[data-fancybox="gallery"]', {
        compact: false,
        on: {
          reveal: (fancybox, slide) => {
            if (slide.contentEl && slide.captionEl) {
              slide.captionEl.style.width = `${slide.contentEl.offsetWidth}px`;
            }
          },
          resize: (fancybox) => {
            for (const slide of fancybox.carousel.slides) {
              if (slide.contentEl && slide.captionEl) {
                slide.captionEl.style.width = `${slide.contentEl.offsetWidth}px`;
              }
            }
          },
        },
      });   
    </script>
  </body>
</html>