CSS classes do not seem to be working

[bridgemanusa64]

Hello:

First of all, GREAT module! Works very nicely.

I am however having difficulty getting custom classes to work. I have a button (Submit) that I am trying to assign a custom class to but for some reason it is not being assigned. In the backend I assign, say, "subButton" to the form element label for "Submit", then add the style in ckforms.css however when I load the form, then view the source the submit element does not have it's own class (style) assigned. Am I doing something wrong?

Here is a snip of the style:
subButton {
color: #000;
font-weight: bold;
}

I checked the documentation but there ie no mention of the custom classes.
Thanks!

Eric B