style.css

body {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    vertical-align: text-top;
    height: 100vh;
    font-family: Arial, Helvetica, sans-serif;
    background-image: url('cat1.jpg');
    background-size: cover;
}

button {
    margin: 20px;
    width: 300px;
    height: 40px;
    border: none;
    border-radius: 7px;
    background-color: O#000000;
    color: black;
    font-size: 18px;
    cursor: pointer;
}

.container {
    min-height: 85vh;
    display: flex;
    flex-direction: column;
    align-items: top;
}

#clock {
    font-family: 'Orbitron', sans-serif;
    font-size: 8vw;
    color: white;
    background: rgba(0, 0, 0, 0.5);;
    background-position: 80%;
}