How do you change the appearance of the form?
Button size & color, button font, font size, font style, color, shadow, padding, etc?
PLEASE don't say "enter some words into the Style/CSS form" again.
That much is clear. WHICH words do we enter? Concrete, specific examples please. There is zero documentation on this in the plugin or the download page.
Every object in the widget has a variable name - button height or width, fonts in the button vs fonts for the fields, etc. Concrete, specific examples, please.