#wrap {
 width: 800px;
 margin: 0 auto;
}

#left-column { /* Parent Wrapper for inside boxes */
 margin: 5px 5px 0px 5px;
 padding: 4px;
 display: inline; /* IE Hack */
 width: 30%;
 float: left;
 border: 0px dotted #ccc;
 background-color: #FFFFFF;
 min-width: 250px;
 min-height: 30px;
}
* html #leftcolumn {height:370px} /* IE Min-Height Hack */ 

#center-column {
 border: 1px dotted #ccc;
 margin: 5px 0px 0px 0px;
 display: inline; /* IE Hack */
 padding: 4px;
 width: 65%;
 float: left;
 min-height: 30px;
}
* html #centercolumn {height:370px} /* IE Min-Height Hack */