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Pop Up Text Question

Hi, I’m trying to find out how to create pop up text on my website when someone clicks on the “advertiser disclosure text” on the top left of the webpage called “product.” Here is the link (note that it’s only compatible with desktop right now): https://preview.webflow.com/preview/nations-initial-project?utm_medium=preview_link&utm_source=dashboard&utm_content=nations-initial-project&preview=cf07e466795af161c9ece914cd147bdc&mode=preview

To better understand what I mean, I need something like this website when someone clicks on “advertiser disclosure” - https://top10-mattresses.com/best-mattresses-in-a-box-2020-recommended-by-experts

If you have an idea on how to do this I’d appreciate it, thanks!