.btn{float:right;margin:12px 10px;width:10px; height:10px;display:inline-block;background: url(../images/asdf.png) left center no-repeat;
 cursor:pointer;}
.btn1{float:right;margin:12px 10px;width:10px; height:10px;display:inline-block;background: url(../images/ddg.png) left center no-repeat;
 cursor:pointer;}

.on .btn{background: url(../images/ddg.png) left center no-repeat;
    display: block;} 
.erlm3 {
    display: none;}

.hjmtite {
    line-height: 40px;
    font-size: 32px;
    font-weight: bold;
    color: rgb(203, 3, 6);
    text-align: center;
    margin-top: 20px;
    font-family: 微软雅黑;
    padding-top: 10px;}
.hjmtite1 {
    line-height: 40px;
    font-size: 25px;
    font-weight: bold;
    color: rgb(203, 3, 6);
    text-align: center;
    margin-top: 20px;
    font-family: 微软雅黑;
    padding-top: 10px;}