JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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.
Follow this user guide to add your Custom CSS code
Here is also the video guide on Advance CSS Codes injection using the Form Designer
video guide: http://www.jotform.com/form-designer/tuts/episode5/
Please let us know if you need further assistance
I moved your question to a new thread as we aim at having only one question/user per thread. You can find it here:
Let us know if we can assist you further.