.clock {
    font-family: Arial, sans-serif;
    font-size: 60px;
    color: #0a854b;
    text-align: center;
    border: 2px solid #333;
    padding: 10px;
    border-radius: 5px;
    background-color: #ffffff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}