How to change the width of fields in my form?

I would like to make the boxes that are beneath my card design names smaller. A new customer was confused that they were so big, she wasn't sure she should put quantities there.

I assume you're referring to these boxes:

If that's the case, here is how to do that:

Through settings of each field, you can shrink the width.

Let us know if you had something else in mind.

Thank you!