/* mask */
/* mask */
#mask{
    width:100%;
    height:100%;
    margin:0px;
    padding:0px;
    position:absolute;
    top:0px;
    left:0px;
    z-index:999999;
}
#mask .mask-overlay{
    position:absolute;
    top:0px;
    left:0px;
    width:100%;
    height:100%;
    
    background:gray;
    filter:alpha(opacity=50);  
    -moz-opacity:0.5;  
    -khtml-opacity: 0.5;  
    opacity: 0.5;  
}
#mask .mask-cont{
    position:absolute;
    top:0px;
    left:0px;
    background:white;
    
    border:2px solid #999;
    box-shadow:5px 5px 5px #444;
    border-radius:10px;
    padding:30px;
    
    width:680px;
    margin:100px 340px 50px 340px;
}
#mask .mask-msg{
    z-index:999999;
    margin:0px auto;
    text-align:center;
    font-size:32px;
    font-family:微软雅黑;
    color:#333;
}
#mask .mask-btn{
    z-index:999999;
    width:280px;
    margin:20px auto;
    text-align:center;
}