If you already have a form you want to customize, make sure its a ContactUs.com Form. Otherwise, you would have to create one. If you already have one, just click on configure form and follow steps 5-8
1. Log in
2. Go to Forms
3. Go to Create New Form
4. Chose a Contact Us Form
5. Select Custom Fields
6. Click on the Custom Fields template thumbnail
7. Click on Design
8. Choose CSS editor from the Dropdown
This video has been created to help users learn about the ease and flexibility of the new contactus.com CSS editor. It’s also a great example of how to use it. It’s a WYSIWYG online form CSS editor. It allows you to edit both the CSS code and use a very intuitive and friendly style editor for non CSS coders.
You can learn more about this and on the lead acquisition tools for small and medium businesses by viewing this infographic.