I have a form which has been designed as mobile first. Currently (most) of the form field are set at 100% width, including the submit button. Some people are of the opinion that the submit button is too wide for "desktop" with no evidence except personal views.
Should the width of the submit button be reduced, which would also mean reducing it for large touchscreen devices (where the button looks fine).
The form looks like:
Name:
[ Input field ]
....
( Button )
Wondering if there are any studies on the size of buttons in forms and their effectiveness?