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 you want to apply it to whole form, you can use the following custom CSS codes:
color: blue !important;
Change "blue" to any color you want. If you want to apply the color to just a specific field, then please let us know the form URL so we can check the field ID and give you the correct codes.
Where id_100 is the field ID. You can find field ID by following this guide: http://www.jotform.com/help/146-How-to-find-Field-IDs-Names
Inject the codes to the form by following this guide: How-to-Inject-Custom-CSS-Codes
If you require any further assistance, feel free to contact us.