Could you tell me how to remove this 1px solid border in sidebar?

Hi all,..just wondering if anyone can tell me where in the Directory Press theme I can delete the border in the sidebar. When I go to view the coding, this is what I get.

element.style {
background: url(“https://www.makemoneygal.com/wp-content/themes/directorypress/thumbs/feedburnerbox.jpg”) no-repeat scroll 0 0 / 275px 363px transparent;
border: 1px solid #CCCCCC;
padding: 3px;
text-align: center;
}

I’ve searched through all the .css files to see where I can change that 1px border to zero but have had no luck.