/*中部开始*/
.middle_column
{
    width:1003px;
    margin:15px auto 0;
}
.right
{
    width:780px;
    float:right;
}
 .right-col 
 {
      width:780px;
      float:right;
      padding-bottom:35px;
 }
.product_content
{
    float:left;
    width:750px;
    padding:25px 15px 0 15px;
    
}
.product_content .span
{
    float:left;
    width:750px;
    height:30px;
    text-align:center;
    font-family:微软雅黑;
    font-size:18px;
    font-weight:bold;
    color:#666; 
    clear:both;
    margin-bottom:30px; 
}

 /*中部结束*/