body {
    background-color: black;
    color: white;
    text-align: center;
}

a {
    color: white;
}

#index {
    background-image: url(img/logo_black.jpg);
    background-repeat: no-repeat;
    background-position: center bottom;
    padding-top: 100px;
    text-align: center;
}

a#index {
    margin: 0 auto 0 auto;
    height: 200px;
    width: 800px;
    display: block;
    color:black;
}