Instantly add Bootstrap form styling to all your Formidable forms. This plugin also adds the option to prepend or append a symbol, such as currency, to your fields.
After the plugin is activated, the full Bootstrap CSS will be included on your site, which means you will have access to a variety of CSS classes. You may refer to the Bootstrap docs for a complete look at what this add-on offers. Many of the Bootstrap classes can be placed in the ‘CSS layout classes’ box in your field options. Specifically, the sizing options found here can be used in the “CSS Layout Classes” box.