<script src="https://product-gallery.cloudinary.com/all.js" type="text/javascript"></script>  

<div id="my-gallery" style="height:500px;margin:auto"></div>

<script type="text/javascript">  
  const myWidget = cloudinary.galleryWidget({
    container: "#my-gallery",
    cloudName: "{{cloud_name}}",
    mediaAssets: [
      {tag: "samples"}
    ]
  });

  myWidget.render();
</script>