.header_ding{
    position: relative;
    /* top:-35px; */
    margin:auto;
    /* width:1920px; */
    background:#ffffff;
    border-bottom: 1px solid #e0e0e0;
    box-shadow: 0 5px 10px #e0e0e0;
}
.header_ding1{
    margin:auto;
    position:relative;
    width:1170px;
    padding-top:20px;
    padding-bottom:20px;
}
.merchandise_details div:nth-child(1),.merchandise_details1{
    font-weight: 600;
    color:#000;
    font-size: 30px;
    margin-top:0;
}
.aligncenter{margin:10px auto;display:block}
.merchandise_details1{
    font-weight: 600;
    color:#000 !important;
    font-size: 30px;

}
.merchandise_details2{
    /*border-bottom: 1px dashed #7A7A7A;*/
    /* height:120px; */
    width:400px;
    margin-top:20px;
}
.yangshi{
    margin-top:20px;
}