Center the email intake bar on a form

Hi GeneratePress Team!

I am trying to center the email intake bar underneath the form title:
https://imgur.com/oP0pd82

Here is the url:

https://thetakeovr.com/how-much-does-a-hoverboard-cost/

Any help is greatly appreciated. I have been playing with the code for some time, but haven't had any luck.

Thank you.