.nadpis{
    text-align: center;
    padding-top: 0.5%;
    vertical-align: middle;
}
body{
    background-image:url(Audi\ r8.jpg);
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    color: whitesmoke !important;
}