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.
The easiest way to do this through Form Designer is to go to the CSS tab. Once you are there, you can simply double click on a single field and you will see the change from a rule starting with a dot, starting with a number symbol - #.
this is ID and means that that specific field will have its background color changed - you would need to select the background-color attribute from the list.
I do suggest taking a look at the following guide: Video Course: Form Designer Basics
It will show you several videos, each holding a piece of a puzzle, and once you go through them, I believe that it will seem very easy, but if you happen to have any questions in regards to it, do let us know.