body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #f4f4f4;
}

h1 {
    text-align: center;
}

.countdown {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.countdown-num {
    width: 80px;
    height: 80px;
    background-color: #DDD;
    border-radius: 10px;
    margin-bottom: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 34px;
    font-weight: bold;
}

.countdown-txt {
    text-align: center;
}