#box{
    
    background: #FFF;
    
    text-align: center;
    position: absolute;
   
    color: #000000;
   
    z-index: 11;
    display: none;
    border-radius:6px;
    border-style:solid;
    border-color:gray;
    border-width:4px;
    
    
    
    
    
     
}
	 
#screen{
    position: absolute;
    left: 0;
    top: 0;
    background: #000;
    opacity: 0.7;
    z-index:10;
}