How do I get rid of white background AREA up to the form itself

How do I hide, get rid of the white background AREA up to the form itself? I want the popup lightbox edge to be the forms edge.

Here's my testsite http://www.crcwatersheds.org/index2.php

In case you would like to remove the border around the form:

Try adding the next style to your web page:

<style>
.jt-feedback > div:first-of-type {
background: none !important;
}
</style>