Lost Widget Format

I lost the formatting of my widgets in the right sidebar, and footer of most my pages on

http://partnersplace.smpportal.net/intranet2.0/

This happened while trying to add a border around my posts with the following code,

.hentry {
margin: 0 0 3.4em;
border: 1px solid #000;
background: #EEEEEE;
padding: 5px;
}

I couldn’t get a boarder around my POSTS ONLY, so that is to be continued…

BUT somewhere along the line, I took out the orderly format of my widgets from the Coraline Theme, and I don’t know how I did it. So, does anyone know how to fix the formatting of my widgets? I should have made a backup by now, but haven’t. And I could probably figure it out by looking at some original theme .css or .php. Just wanted to reach out on here first. Thanks in advance…