#sc_inner {
    margin: 0 auto;
    position: relative;
    width: 980px; /* fits well inside 1024 with a little room on the sides */
}

#sc_col1,
#sc_col2 {
    float: left;
    width: 180px; /* nav column width */
}

#sc_main {
    padding: 0 7px;
    float: left;
    
    /* below line prevents an IE 6 and earlier CSS bug */
    }

/* controls main content div when 3 columns are visible */
.cols3 #sc_main {
    width: 606px;
}

/* controls main content div when 2 columns are visible */
.cols2 #sc_main {
    width: 786px;
}