Change Size of Client “Log in” Button

I have a client project setup for identity provider on authentication strategy, and I am curious if there is a way I can change the size of the “Log in” button?

Specifically the width and not length, as it is somewhat small to click using a touchscreen.

If so, I would very much appreciate the “how to”.

Thanks!

What "log in button" are you referring to?

There is not any way to resize this button.