@media screen and (max-width:900px) {
    .dun_headder > div {
        padding-top:0px !important;
    }
    
    .dun_h_logo {
        width: 90px;
        height: 37px;
        background-size: 90px 37px;
    }
    
    .dun_headder > div {
        
    }
    
    #dun_h_title {
        display:block;
        width:auto;
        width:98%;
        border-top:1px solid #E6E6E6;
        font-size:11px;
        margin-top:-15px;
        line-height:15pt;
        font-weight:bold;
    }
    
    .dun_mainContent {
        width:100%;
    }
}

@media screen and (max-width:700px) {
    .dun_bd_left {
        float:top;
        width:100%;
    }
    
    .dun_bd_right {
        margin-top:20px;
        float:next;
        width:100%;
    }
    
    #dun_bd_content {
        padding-left:5px !important;
        padding-right:5px !important;
    }
}