How to have two containers in one Modal that exist on the same scroll?

Hello,

I’m trying to build a modal pop up that mimics the layout and design of the modals used in this site here


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As you can see, the modal contains two separate containers: one for the content and the second to serve as a button allowing the user to proceed to the following section of content without having to formally exit out of the modal.

I’m having trouble setting up my two containers to align vertically atop of the other. But also having the second container appear via the same scroll used for the first container

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Can someone please help me resolve this issue? Any help is greatly appreciated

Thanks!

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