Paste the code to your Elementor website’s HTML field.
Next, go to your Elementor website editor and find the HTML field. It is most likely in the form of an HTML/Code widget or module which you can find on the Elementor’s editor. Add it to your page, and paste the Notification Popup Embed Code you’ve copied before to the HTML field.
Save and update, and that’s it, you should have Common Ninja’s Notification Popup widget on your Elementor website.