body {
    background-image: url('https://images.unsplash.com/photo-1482351403047-56c184e23fe1?q=80&w=2070&auto=format&fit=crop&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D');
    background-size: cover;
    font-family: sans-serif;
    display: flex;
    margin: 0;
    padding: 0;
    height: 100vh;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

h2 {
    background-color: rgba(255, 255, 255, 0.75);
    padding: 5px 10px;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.7);
}

.clock {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 5px 10px;
    justify-content: center;
    align-items: center;
}

.clock-item {
    display: flex;
    flex-direction: column;
    background-color: rgba(255, 255, 255, 0.75);
    margin: 5px;
    padding: 10px;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.7);
}

.hours, .minutes, .seconds {
    font-size: 40px;
}