Form Style defines the look and feel of your forms on the front end to site visitors. It is a drop down type field, therefore you can only select one option at a time. There are 2 options to select from:
CLASSIC – This is a neutral style that uses light greys, blacks and whites which can fit into most themes. The field labels are on the left side of the fields and buttons are gradients of yellow. This is a responsive styles and labels will move above the fields as you reduce screen area. Success message also uses same theme.
MATCH MY THEME – This is an adaptive style that tries to establish form elements from your current WordPress theme. The field labels are on top of fields. Since there is no exact science behind creativity, this may not work sometimes exactly as it is intended. With each revision we try to support more themes. If Button style do not match, don’t fret, there is an option in Form Settings to custom style the buttons.
We would recommend trying both styles to see which style suits your theme best. If you have experience in CSS and HTML, you can easily customize the form look to suit your requirements.