.popup {
    position: absolute;
    left: 0; right:0;
    top: 0; bottom:0;
    margin:auto;
    max-width:100%;
    max-height:100%;
    overflow:auto;
    background-color: #000;
    background-color: rgba(0,0,0,0.75);
    display:none;
    justify-content:center;
    align-items:center;
}
.popup div{
    background-color: white;
}
.popupTable, .popupTable tr td,.popupTable tr th, .popupTable tr{
    border: 2px solid black;
    border-collapse: collapse;
    font-family: Arial;
    font-size: 16pt;
}
.popupTable{
    width: 500px;
    text-align: center;
}