#4columns .column1 {
    float: left; 
    width: 230px;
    margin-right: 10px;
}

#4columns .column2 {
    float: left; 
    width: 230px;
    margin-right: 10px;
}

#4columns .column3 {
    float: left; 
    width: 230px;
    margin-right: 10px;
}

#4columns .column4 {
    float: left;
    width: 230px;
}