How do I change the background color of the text area for the date picker widget?

I wish to change the background color of the text area for the Date Picker Widget. It's currently transparent but I need it to be white since the background color of the form is black. I've uploaded a screenshot reference of the widget. Please help with this as soon as possible.

Thanks!

I checked that field in your form and you seem to have figured it out.

Anyway, if in case, this is the CSS codes needed to make its background white and text to black.

input.form-control {

    background-color: #fff !important;

    color: #000 !important;

}

Regards!

Yea I managed to figure it out just after posting the question. Thanks a lot for the response!