A pop-up is a small window that appears without any request in the foreground of a web page in your browser. It is mainly used to capture visitors' attention. You can find pop-up blocks in the "Form and button" and "Social networks" categories in the blocks library.
Tilda supports several types of pop-ups. They can be triggered by various visitor's actions: clicking a link, scrolling, spending a certain amount of time on page or leaving a page.
To make a pop-up appear on click:
Learn more about how to add pop-ups