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JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

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    Change color of a field when filled

    Asked by ronshuller on January 08, 2016 at 09:15 AM

    I am sending long URLs that complete fields for clients when viewed.

    How can I change the text style on the contents of a completed field?

    change to bold, change color, change size, etc.

    Page URL:
    https://form.jotform.com/53616626954969

    style size Long how
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    JotForm Support

    Answered by Kiran on January 08, 2016 at 12:26 PM

    Unfortunately, it is not possible to change the property of a field when it is filled using JotForm builder. However, you may achieve this by downloading the full source code of the form and adding additional JavaScript code. When you get the source code to modify, you'll need to host the form on your webserver.

    Please refer to the link below that might help you in achieving this requirement. 

    http://stackoverflow.com/questions/17218987/changing-background-color-of-text-box-input-not-working-when-empty

    An example with a textfield changing color when filled is shown below :

    http://jsfiddle.net/2Xgfr/829/

    Hope this information helps!