I have a tiny issue with my email opt in box in footer in that when you enter an email and press subscribe the button gets slightly bigger. See here: https://cl.ly/d902a1b6a625
I contacted elementor support and they said:
Regarding the Email field when you press the submit button, it is the issue related to your theme CSS or other plugins CSS. I see that there is a preloader appears when you click on the submit button and make the button height bigger.
They recommended I contact you guys in case you have a solution?
looks to me like a simple case of there is not enough room for the ‘submitting spin’ icon to fit inline with button label. Try either increasing the width of the button in the form to 40 / 50% or reducing its font size to give it some more room.