How can I remove the envelope background at the bottom of the form?

There's an envelope graphic at the bottom of my online application that needs removal. I don't know how to do it. 

You need to inject the following custom CSS codes to your form:

.form-section:before {

background: none !important;

}

Please follow the steps from this guide to inject: https://www.jotform.com/help/117-How-to-Inject-Custom-CSS-Codes.