Vertical Position between Fields, especially "Submit" button

It seems like whoever designed the various fields in GF didn't pay much attention to getting the vertical spacing between the various fields to be uniform across all combinations. Sure would be nice if the developers could correct this in a future upgrade.

The "Submit" button at the bottom of a form has a LOT of extra vertical space between it and the last field. Is there any reasonable way to reduce this vertical space to be more like between the other fields?
-- Thanks, Roger

I would appreciate some additional help with this question. I have already applied the following CSS code, but it has minimal effect on reducing the vertical spacing between the last field and the Submit button. I have looked at all of the built in css classes shown in the documentation on this site and didn't see anything that would help.

#gform_submit_button_1 {
	font-weight: bold;
	font-size: 18px;
	font-family: Georgia, serif;
	margin: 0px 0px 0px 0px;
}

-- Thanks, Roger