input,
button,
textarea,
select {
    font: inherit;
}

#board{
    display: grid;
    grid-template-rows: repeat(3, 200px);
    grid-template-columns: repeat(3, 200px);
    gap: 20px;
    font-size: 100px;
}

body {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}

#startBtn {
    padding: 10px 30px;
    border-radius: 20px;
    font-size: 30px;
}