It's easier to show the issue than to explain. So here is a link to a test page with the popup window
Link to page with popup window
The popup is activated on the website when you click on the top menu "LOGIN - MODAL TEST"
When you click on it you will see one thing which need to be fixed
The height and width need to be the size of the background image, which is 311px wide by 381px tall.
For some reason the box resizes to a smaller dimension.
Note: I am also including a css file and a php file -- but the developer says the resizing "problem" is controlled by the js file.
Also: You'll the specific CSS for the background image is in the header of the page.
background: url("/Images/login_bg.png") no-repeat;
Note, any fixes can be hard coded -- if that's easier. The modal is only going to be used for this one purpose.
Thanks for any help!