OK Button - New Address/Edit Address

Is there a way to style the "OK" button.

I am using different images in the cart buttons so I do not want to edit the a.hikashop_cart_button. because it will affect all buttons I am using for Hikashop.

Is there a separate style/id that it uses? Is it dependent on the template?

Yes, you can style only that button with CSS like that:

.hikashop_address_form_span_iframe a.hikashop_cart_button{
font-size: 2em;
}

Awesome! Thanks. Was able to get the styling I needed!