Is it possible to make my form responsive?

Specially to mobile devices. 

Our forms are mobile responsive by default. If your form is currently not responsive, that means you have customized the form in a non-responsive way. But I checked your last form ID, and it is already responsive. This form https://www.jotform.com/80774168389169.

If you are referring to other forms, please share with us the form URL so we can check and help you identify or fix the problem.