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.
For your case on sub-headlines, if you wish another more flexible option, you can use the Text Tool element which you can find under Form Tools.
With this form element, you can modify your text to create paragraphs, modify your font weight, size and style, insert images, and edit the HTML code of your text content.
Should you have further questions, please do let us know.