* {

    font-family: Lato sans-serif;

    background-color: #4A245E;
    color: white;

}

body {

    display: flex;
    justify-content: center;

}

.grid {

    margin-top: 10em;
    position: absolute;

    display: grid;

    grid-template-columns: 10em 10em 10em;
    grid-template-rows: 10em 10em 10em;

    width: 75%;

}

.box {

    font-size: 5em;

    border: 3px solid #4A245E;

    padding: 1em;

    display: flex;

    justify-content: center;
    align-items: center;

    margin: 0;

    background-color: white;
    color: #4A245E;

}

#output {

    position: relative;
    padding: 5em;
    width: 100%;

}

button {

    background-color: white;
    color: #4A245E;
    padding: 1em;
    font-size: 1em;
    border-radius: 15px;

}