[Plugin: Custom Contact Forms] Can't Change Font?

I’m trying to change the font in the “Manage Form Styles” options. I type in my slug that I want changed, check the box above and then add a new font to the appropriate box (font family).

I then click save and yet nothing changes.

Whilst I’m here – how do I get some spacing for the text inside the fields? I want them to have a margin of a few pixels but no options seem to move it in any way.

Thanks

http://wordpress.org/extend/plugins/custom-contact-forms/