See Editing form template
What content do you have in the Form tab panel?
Yes I saw that, but the code doesn’t have an edit.
It looks like this:
Voor- & achternaam
[text naam]
Straat & huisnummer
[text straat]
Postcode
[text postcode]
Woonplaats
[text woonplaats]
Telefoonnummer
[tel tel]
E-mailadres
[email email]
‘Voor & achternaam’ looks fine, ‘Straat & huisnummer’ is smaller, ‘Postcode’ is even smaller and so on, and so on.