Submit button alignment with Back Button

Why do I need to change my CSS for the Submit each time to get it to align with the Back Button. It is a nuisance as it is never the same on each form even when cloned. 
Can the developers not make this happen without us having to inject CSS each time and experiment with different values to get it right?
They seem to have done it with the Back and Next buttons why not the Back and Submit buttons?

Sorry for this inconvenience, it is because the Page Break which contains the Back and Next buttons are a different field elements.

You can also hide the Back button in the last page which contains the Submit button as an alternative.