Good afternoon, I do not even know where to start, I have an auction system where the user waits on a page to have a product sent from an application, when the product is shown to the user it must contain an expiration time to buy, what I need is that as soon as my product is shown to the user, a modal or a div appears showing the purchase expiration time but this modal or div is persistent, so it does not disappear if the user navigates in other tabs.
Here is a graphic example of what I need. I appreciate it, the language can be php or javascript no problem.
Edit: Ideally, the window could be minimized.
