WP Form Styler will allow you to style your WP forms. You don’t need to know any CSS to style form that was created with the WP form plugin. This is a freemium plugin that is available in WordPress respiratory. Our styler module works excellent with the free version. Here is the documentation for the module-
https://www.diviflash.com/docs/wp-forms/
If you need further assistance, we are here to help.