So I am not sure if this is even possible. But I want to make a login page something similar to this:
[Image here](https://i.stack.imgur.com/zrTUn.png) Using HTML, CSS and Javascript.

Now as the background image, I want that to display how another website looks like like. If I take for example google.com as an example. I want the background image to display exactly what you see when visiting google.com. Is something like this even possible?