Resizing fancyBox window

Hi,

We would like to make the FancyBox window smaller when it pops open so it doesn’t take up so much of the screen.

I have the height and positioning the way we want it using this custom code:

.fancybox-video, .fancybox-iframe {
    height: 700px;
    width: 900px;
}

.fancybox-iframe {
    position: relative;
}

The width of the page we have pop-up is correct, but is there a way to center that and remove the white background so that the whole pop-up window is smaller?

Thanks!
Amy

The page I need help with: [log in to see the link]