* {
    margin: 0;
    padding: 0;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url("clock.png");
    background-repeat: no-repeat;
    background-size: 100% 100%;
    height: 100vh;
}

#digital-clock {
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: 10vw;
    color: black;
    border: 4px solid black;
    border-radius: 15px;
}