When you use compact form fields, the field name will be displayed within the input box or text area. The text will disappear as soon as your form visitor clicks on it. The width of your form will be smaller and the form will fit easier in your web page.
This feature can be used for the following form fields: Text Box, Text Area, Number, Email or Website.
After adding a field to your form, click on it in the main view to open the Edit Field panel. Under the label name, check the Compact Field box.