#snackbar
        {
            width: 300px;
            height: 40px;
            font-size: xx-large;
            border: 5px groove black;
            background-color: Black;
            color: White;
            font-family: Segoe UI Semibold;
            visibility: hidden;
            border-radius: 4px;
            position: fixed;
            z-index: 999;
            left: 50%;
            top: 100px;            
            font-size: 30px;
            min-width: 250px;
            margin-left: -125px;            
        }
        
        #snackbar.show 
        {
            visibility: visible;            
        }