#leftcolumn
{
    width: 350px;
    float: left;
    margin-right: 10px;
    border: 1px solid #cccccc;
    padding: 10px;
}


#rightcolumn
{
    width: 450px;
    margin-left: 360px;
    border: 1px solid #cccccc;
    padding: 10px;
}