#border {
 width: 800px;
}

#leftcolumn { 
 /* margin-left: -620px; */
 /* margin-left: -770px; */
 margin-left: -610px;
}

#centercolumn { 
 /* width: 420px; */
 /* width: 570px; */
 width: 410px;
}

#rightcolumn {
 width: 160px;
}