Hello!
Try the following code, it should help you get what you’re looking for. Just make sure that the lightbox html_element matches an id of an element on the page. The element with the id is what will show in the lightbox.
[intense_lightbox type="colorbox" content_type="html" html_element="test-popup"]
test-popup
[/intense_lightbox]
<div id="test-popup" style="max-width:800px;">
[intense_heading tag="h3"]Test Popup[/intense_heading]
[intense_filler paragraphs="3"]
</div>
If you need any additional help, let us know.
Thanks,
Josh