Prevent Background Scrolling When Displaying Popup

Question

I have a form that is displayed in a popup. After loading, the background is grayed out, but the user can still scroll the background content up and down.

How do I

Answer 1

If you are using it like this

Open Model 

(#tragetid) is the div popup id.

You can use and replace href="" with data-mfp-src="". It's working perfectly.