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.
I checked your form and HTML has a class of .supernova. You can use this class to apply custom CSS on the form. Here's a guide on How-to-Inject-Custom-CSS-Codes.
Hope that answers your question. If not, please provide more details about the issue and a screenshot of what you're trying to achieve. Here's a guide on how to add image/screenshot to support forum: https://www.jotform.com/answers/277033.
If you need help, please contact us again.
As your second question is related to another topic, I have split the thread in order to assist better by our support team as you can find it at the following link: https://www.jotform.com/answers/1088020
We are going to answer your question at that link.