how to make form responsive

Please see our guide on how to enable the responsive options inside the form:

https://www.jotform.com/help/311-How-to-make-Forms-Mobile-Responsive 

You can also take this guide into consideration in order to make Mobile Friendly forms on Jotform:

https://www.jotform.com/help/322-How-To-Make-Mobile-Friendly-Forms-on-JotForm 

If you need additional support please let us know more details, namely form's url, so we can be of more assistance.