#development_box{
    height: 1050px;
    width: 100%;
    background-image: url("../image/background/container_bg2.png");
}
#development_content{
    height: 1050px;
    width: 800px;
    left: 50%;
    margin-left: -400px;
    position: absolute;
    padding-top: 80px;
}

.box_year{
    display: block;
    width: 800px;
    clear: both;
}

.year_th,.year_content{
    float: left;
    display: block;
}

.year_th{
    width: 250px;
    font-size: 36px;
    text-align: right;
    padding-right: 25px;
}

.year_content{
    width: 545px;
    border-left: 5px solid #888888;
    padding-left: 35px;
    padding-top: 5px;
    padding-bottom: 35px;
    font-size: 20px;
}