Make fancybox background overlay static?

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Good day,

The title is really all there is to it. Once the user adds item to cart a fancybox appears which has all the "Continue Shopping" links and such.

Now, this file is "padded.php".

How can I make the background static? As in, the #fancybox-overlay. The user must not be able to close the modal (fancybox) popup by clicking on the background.