.media-dialog-bg{display:none;position:fixed;width:100%;height:100%;background:#000;z-index:1001;top:0;left:0;opacity:0.7;}
.media-dialog-content{
    display:none;
    width:300px;
    height:100px;
    position:fixed;
    top:50%;
    margin-top:-150px;
    background:#fff;
    z-index:1002;
    left:50%;
    margin-left:-10%;
    text-align: center;
    font-size: 14px;
    padding-top: 60px;
}