How to make clickable image into new window within section?

Hi! I’m new here and am really loving webflow so far. Anyways, I had this idea for my portfolio site. On the main page are the projects (where 1 takes up most of the page), then you click on it and it slides to the left and shows description on the right. However I just can’t figure out how I would do that right now. Any help at all would be greatly appreciated!!



^basically this to this:

but I want it all to stay within one window so you can X out and get back to the main page with the projects