html, body{
    overflow: hidden;
}

body {
    background-image: url(img/amur_clock.png);
    background-size: cover;
    background-repeat: no-repeat;
}

#clock {
    text-align: center;
    color:mediumvioletred;
    margin: 3% 0 0 18%;
    font-size: 6vw;
}

#subtitle{
    margin: 20% auto;
    text-align: center;
    background-color: rgba(0,0,0,0.5);
    color: white;
    font-size: 3vw;
    width: 25vw;
}