* { padding: 0; margin: 0; }
body { background: #000000; color: #ffffff; text-align: center; min-width: 940px; min-height: 700px; }
a { color: #ffffff; }
#interface { position: absolute; top: 50%; left:50%; width: 940px; height: 700px; margin-top: -350px; margin-left: -470px; }