OnPay: Custom backgrounds for form

form-extra-code.html

<style>
    /* OUTER BACKGROUND */
    body {
        background-image: url(https://www.toptal.com/designers/subtlepatterns/uploads/light-grey-terrazzo.png) !important; /* Change the URL with your own image */
    }
    
    /* INNER BACKGROUND */
    .col-md-10 {
        background-color:#fff98b !important; 
        /* Add your own custom properties here */
    }
</style>