I need some help. I use Infusionsoft WP plug-in to build an opt-in form on our website. I set everything, but I am not happy with the design. I have a chance to write custom CSS code, but I do not know how this works. I know basics of CSS, but I do not know how to start and put the code in this plug-in.
Can somebody give me some example or some tutorial.
Here is an example declaration that changes the width on this exit fly-in and an image of what the Custom CSS text block looks like in the WordPress plugin.