We'll create fresh WordPress site with Floating Contact Button installed. You have 20 minutes to test the plugin after that site we'll be deleted.
The „Floating Contact Button“ displayes an fixed contact button on the bottom right of the screen. It opens an modal with your favorite contact form plugin. Before you have to generate a contact form and after this copy the shortcode into the plugin settings form Floating Contact Button.
The plugin is real lightweight. The .css file is minimized to load as fast as can.