body{
    background-image: url(Chicago.png);
    background-repeat: no-repeat;
    background-attachment: fixed; 
    background-position: center;
    background-size: cover;
    margin: 0;
}
.clock-container{
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
#clock{
    font-family:Georgia, 'Times New Roman', Times, serif;
    font-size: 6rem;
}