3D FlipBook - lightbox activation link on page effects css on page

Hello, we have a button on our page that opens the lightbox for our PDF flipbook, but the css on the page is being effected by then flipbook button being on the page. We have custom dividers on our pages and the dividers don't work because of the flipbook being on the page. Our pages that don't have the flipbook embeded on the page, the dividers work ok. How can we still have our dividers work on our pages with the fiipbook shortcodes embeded on the page?

Here's an example page: https://synergeticpress.com/catalog/reclaiming-the-commons/