body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin-top: 50px;
}

button {
    margin: 10px;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
}

#timerDisplay {
    font-size: 2em;
    margin-bottom: 20px;
}