.ry{width:1200px;margin:auto;display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly;}
.ry .child{margin-bottom:70px}
.ry .child .img{padding:34px;background:#F6F6F6;    text-align: center;} 
.ry .child .img img{width:298px ;height:212px;
}
.ry .child .span{background:#F6F6F6;display:block;border-top: 2px solid #E4E4E4;padding: 20px 0;text-align: center;font-size: 16px;color: #5A5A5A;
}

@media(max-width:820px){
    .titdiv{width:100% !important;}
    .btt{width:auto !important;    font-size: 13px !important;}
    .ry{width:100% !important}
    .ry .child{margin-bottom:30px}
    .ry a{width:49% !important;}
    .ry a img{width:171px !important;height:124px !important} 
    .ry a .img{padding:5px !important}
    .ry a span{font-size:13px !important;white-space:nowrap;}
}
@media(min-width:820px) and (max-width:1024px){
     .ry{width:100% !important}
}