Help on Closing Gate

So I want to make a sclosing gate like in this video using script
But I dont know how to do it, anyone know how to code it or maybe give me the idea of how to do it?

Tween the size downwards, then at the same time, tween the position down HALF of the size tween (there is a reason for the half, don’t worry)

Oh ok, let me try that. Thanks!

Nvm im so dumb, I just need to use the bounce easing style