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.
May I know which of your forms you wanted to edit or change the style?
In your Form Designer, you can edit the width and other layout settings of your form.
To access it you can navigate to the Designer from your Form Builder.
Inside your Form Designer, you can do a lot of things and that includes the width and other layouts. You can also inject a custom CSS code there.
I hope this helps. We'll wait for your response.