html, body { height: 100%; padding: 0; margin: 0; }
body { background: url("../images/baksteen.jpg") no-repeat center center fixed; background-size: cover; text-align: center; }
img {  position: relative; top: 50%; transform: translateY(-50%); max-width: 80%; }
ul { position: relative; top: 80%; }
ul li { display: inline; padding-left: 20px; }
a { color: white; }