div {
    padding: 5px;
    font-size: 1.25em;
}
.block {
    display: inline-block;
}
.top {
    padding: 5px 5px 5px 20px;
}
.singleDigitBottom {
    padding: 5px 5px 5px 25px;
}
.singleDigitTop {
    padding: 5px 5px 5px 40px;
}
.answer {
    border: solid 2px black;
    background-color: rgba(100,100,100,0.1);
    height: 50px;
    width: 50px;
}
.table {
    text-align: center;
}