Can I Make a Form Responsive?

I have added a form to my website. Unfortunately, the form width is defined to 500px, and thus does not resize with smaller/larger screen sizes. How can I make the form responsive?

I think when setting up a form, you can override the width. So while not responsive, if you make it 300px wide, it should be fine (depending on your margins/padding).

But good point, these should be responsive. Maybe if Vin65 just changed it to a max-width property instead of width.