Once you have finished customizing your Contact Form or any of our forms, save and publish your settings. On the left panel you will see a "Get Code" button.
This section contains the web code you need to copy/paste on your page's HTML source code. If you select "Standard" you'll get the regular tab+form combination code. The "Embeded Form" will provide the embedded version of the form.
Select the code and place it on your website. Make sure you paste it within the <body> ... </body> tags.
Watch this video as reference: