ContactUs.com gives you options for multiple fully responsive design templates on your ContactUs form. Each has been created by web-designers experienced in online lead-generation, and are built-for-conversion. You will have your choice between the design templates.
The path to get in the Form Templates section is: Login> Forms> Select a Form> Form Settings> Design> Templates. From there, you’ll see small screenshots in the Template section, and will be able to preview the full-screen design in the larger preview section: