.ban{min-height:110px;}
.bd_weixin_popup{
height: 330px !important;}
    #qrcode canvas {
        width: 168px;
        display: block;
        margin: 10px auto;}
 #qrcode img{
        width: 168px;
        display: block;
        margin: 10px auto;}
    .ps {
        text-align: center;
        margin: 10px 0;
        color: #666;
        font-size: 12px;}