Page moves up on button click

Hi! - I’ve got a newsletter signup form I’d like to have under my footer that will slide up (and force the rest of the page to slide up) when it’s clicked. I have the interaction setup, and it works, but instead of the page sliding up on the “move” interaction, it just appears and the page stays stationary and you must scroll down to see it.

I’m trying to emulate the interaction on this website:

Scroll to the bottom of the page and click “subscribe to our newsletter” in the footer to see the interaction they have.

Any help is appreciated! Unfortunately I can’t share my website link, so any help walking thru how to setup the interaction would be helpful!