CSS: Forms without Boxes (underline)

Hi contracts are more powerful when you don't put information in boxes, it means that you take the words off the page and isolate them in a box. Legal stuff. Is there a way to remove the boxes and use a line? 

Hi, @Inpower,

Currently, I do not see any field appearing inside a box in your form -  https://www.jotform.com/82915721448361 

Could you point to the field that you want to appear as a paragraph in a line? 

El 2018-10-21 13:19, JotForm escribió:
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I reviewed all your form, it appears to all input fields have dotted lines instead of boxes. Lets us know should you need further assistance. 

Hi I still don't have my question answered. I am looking to use any theme and remove the boxes. My options are limited to only one theme at the moment, this one has dots. Plus when I have moved over to PDF builder everything has boxes. This is not a good thing for contracts. Is there any CSS code I can enter to remove them?

Here is the CSS code to remove the text boxes in any template:

.form-textbox {

    border : 0px solid #000000;

    border-bottom-width : 1px;

    background-color : transparent;

}

How to inject custom CSS code