#center-column
{
    float:left;
    width: 619px;
    background-color: #fff;
}
#column1
{   float:left;
    width: 290px;
    padding: 5px;
    background-color: #ccc;
}
#column2
{
    float:left;
    width: 290px;padding: 5px; background-color: #ddd;
}