GetEmail Popup Box

Hi,

I am trying to transfer a Subscription Popup Box from a static .html page to the homepage of a WordPress Theme. Here is the link of the static page (https://crossovergraphics.com/mli/squeezepage/index.html), if anyone has any suggestions or references on this that would be great. I have already tried to just simply copy the files needed but that did not work.

Thanks
-G