What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
If I understand your question correctly, you want to change the width of your form's text fields. Is that correct?
It is possible to increase the width of the text boxes through "Form Designer". Please check the screenshot below:
You may also like to take a look at the following "Form Designer" tutorial which should help you: http://www.jotform.com/help/300-Form-Designer-Tutorial-Let-s-create-fantastic-forms-
Hope this helps.
Do get back to us if you have any questions.