body{
    font-family: Arial, sans-serif;
    background-color: white;
    text-align: center;
}


h1{
    color:black;
}


table{
    margin: 20px auto 0;
    border-collapse: collapse;
}

th, td{
    border: 4px solid black;
    padding: 10px 20px;
    font-size: 23px;
}

button{
    background-color: blue;
    color:white;
    border:none;
    padding:10px 20px;
    font-size:18px;
   cursor:pointer;
   margin-top:20px;
   border-radius:5px;
}

button:hover{
    background-color: darkblue;
}