* {
    font-family: sans-serif;
    font-size: 1rem;
    box-sizing: border-box;
    user-select: none;
}

.large {
    font-size: 1.2rem;
}

button:active {
    background-color: darkblue;
    color: wheat;
}

button.blend-in {
    background: none;
    border: none;
    font-size: 1.2rem;
}

.grow { /* could be global */
    flex-grow: 2;
}