body{
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    
}
table{
    width: 80%;
    margin: 0 auto;

}
button{
    background-color: blue;
}
th{
    text-align: center;
    border: 2px solid black ;
    padding: 12px;
}
tr td{
    text-align: center;
    border: 2px solid black ;
    padding: 5px;
}
.textResult{
    text-align: center;

}