.content_main {
    width:980px;
    margin:0 auto;
    padding-bottom:20px;
}

.content_container {
    padding: 50px 70px 0;
}

.content {
    border:1px solid #c9caca;
    background:#fff;
    padding:15px 100px 0;
}

.content_lmbt {
    background:url(../images/about_bt.png) no-repeat;
    width:190px;
    height:75px;
    position:relative;
    left:-125px;
    line-height:55px;
    text-align:center;
    font-size:16px;
    font-weight:bold;
}