Once the popup is open, scrolling of the entire page is disabled using custom code (body = overflow hidden). This helps longer content in the popup overlay to scroll more comfortably without accidentally scrolling the whole page. For the video popup, additional custom jQuery code is needed to stop the video from running in the background when the close button is clicked. Tutorial: https://youtu.be/JbNtDkrfH0U

modal, modals, popup, overlay, custom modal, cloneable, window, youtube, video, content, signup