Make categories side box different from other side boxes

[Jeff G]

I modifed my categories side box to have a fixed height and scroll bar.

I did it with various suggestions I found in the forums and came up with this in my stylesheet:

.leftBoxContainer {
    margin: 0em;
    border: 1px solid #800000;
    border-bottom: 5px solid #800000;
    margin-top: 1.5em;
    font-size:.9em;
    font-weight:normal;
        height: 600px;
        overflow: auto;
    } 

My problem is that the height and overflow settings are applied to all left side boxes.

How can I set it to only apply to the categories side box?

Site is here: http://www.reisshardware.com

Thanks,
Jeff