#header_area {
    width: 530px;
}

#main_area {
    width: 530px;
}

#left_area {
    width: 210px;
    float: left;
    text-align: center;
}

#middle_area {
    width: 100px;
    float: left;
    text-align: center;
}

#right_area {
    width: 210px;
    float: left;
    text-align: center;
}

#item {
    width: 200px;
}

#cart {
    width: 200px;
}