How to realize the pop-up window that disappears automatically by JS
This article introduces the knowledge of "how to realize the pop-up window that disappears automatically at a fixed time". In the operation of the actual case, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!
1. The Demo.html js box will disappear automatically after 3 seconds.
