h1, h2 {
    text-align: center;
    width: 100%;
}

table {
    text-align: center;
    width: 100%;
}

td {
    height: 25vh;
    vertical-align: middle;
    border-style: dotted;
    font-size: 15vh;
    margin: 0;
    padding: 0;
}

.key {
    vertical-align: middle;
    display: inline-block;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

.key p {
    display: inline-block;
    margin: 0;
    padding: 0;
    line-height: 25vh;
}