How can I change the color of clear button to white under the signature widget?

How can I change the color of "clear" to white under the signature-box of the signature widget? What is the code for this?

You can inject the code below to set the "Clear" text to color white.

a.clearButton {

    color: white !important;

}

Guide: https://www.jotform.com/help/117-How-to-Inject-Custom-CSS-Codes 

Let us know if you have any questions or if you need further assistance.