How to change the background color of a TEXT field

I'd like to be able to have a few 'text' areas with different backgrounds. Please see this form as reference:

You can use this custom CSS code to your form https://form.jotform.com/60756907585974    using the Form Designer

#text_1 {

    background-color : #353839;

}

#text_3 {

    background-color : #436CB9;

}

Let us know if you need further assistance.