How to remove the Last Name textbox in the Name field?

In the full name category can I delete one of the sublabels so I can create the category as

Name:

First & Last Name

Therefore only filling one box instead of two?

If I understood your requirement correctly, do you wish to hide the second textbox of the name field?

If yes, please add the CSS code below:

#last_3{

  display: none;

}

 Thanks, yes my goal is to delete the second text box. I have added the CSS code, however nothing has changed in my form.  I have saved it.  What am I missing?

As I check your JotForm, there are no fields added to it and the form is disabled. Please try adding the field to the form and enable the form so that we can check and assist you further. 

Thanks!

Great, my form exists, it is labeled "Test"

Here, please insert the CSS code below:

#last_3 { 

    display: none !important; 

} 

#sublabel_last { 

    display: none !important; 

} 

Related Guide: How-to-Inject-Custom-CSS-Codes