#main_content   {
    width:316px;
    margin-left:auto;
    margin-right:auto;
}

#main_content .about_banner   {
    width:316px;
    margin-left:auto;
    margin-right:auto;
    padding-top:40px;
    padding-bottom:100px;
}

#main_content .about_banner dl   {
    margin:0;
}

#main_content .about_banner dt   {
    color:#509bb4;
    font-size:19px;
    font-weight:500px;
    margin-top:40px;

    border-bottom:1px dotted #b4b4b5;
    padding-bottom:10px;

}

#main_content .about_banner dd   {
	margin-left:0px;
    font-size:15px;
    line-height:1.8em;
    margin-top:10px;

}

#main_content .about_banner dd ul{
    margin:0;
    padding:0;
    margin-top:20px;
}

#main_content .about_banner dd li{
    margin:0;
    list-style: none;
    padding:0;
    
}

#main_content .about_banner .banner_box   {
    margin-top:40px;
}

#main_content .about_banner .banner   {
    margin-top:20px;
    margin-left:40px;
}