Aha sorry for the trouble, What I want is one element expands to take the full page while everything else in the page stays the same.
Yes, I'm currently testing it
Exactly
example (note: you may need to decrease browser zoom level to 50% to be able to see the controls, at least I needed to do that on my monitor)
In this example you can click on any of the images -> it will expand to take the entire area -> you can now press the X button on bottom of the page to get out of the "expanded" mode, and you can click on another pic.
You can see that only that div is being expanded while the rest of the page is unaffected. That's exactly what I'm trying to make.