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.
Yes, you can inject your custom CSS code, to do it just follow this guide:
You may also add custom CSS codes in the designer, you will find it on the top toolbar:
And also take a look on this guide: http://www.jotform.com/help/90-Form-Field-Positioning.
If you want, you can also apply a theme to your form, this guide will help you doing it: http://www.jotform.com/help/184-How-to-Use-Your-JotForm-Themes.