1. Pop-ups are stored in a collection, which is on-page.
2. The collection can be stored in a symbol, and then embedded in a site-wide footer to make the modals available on all pages

The rich text element allows you to create and format headings, paragraphs, blockquotes, images, and video all in one place instead of having to add and format them individually. Just double-click and easily create content.

from https://jquerymodal.com/

Build & Display Modal from CMS, Webflow-styled

This is a reproduction of the example on the jQuery Modal demo site, in Webflow.