How to make the popup extension window fill the entire browser window?

Question

css

It is necessary to close all the content in the browser window with the popup window when the button is clicked.

Answer 1

I won't write a script.
1) Create an absolute positioned block with highest z-index, 100% width
2) Then jquery get the size of the body tag
3) Set the resulting values ​​to the generated div
4) Set the div to display: block;
Everything. You can also disable page scrolling or set the divs to position: fixed;