table.navi        { background-color: #3cf; text-align: center; width: 100% }
table.content     { padding: 50px; width: 100% }
td.navi  { }
a:hover   { text-decoration: none; background-color: #ccf }
a { color: blue; text-decoration: none }
.center { text-align: center }
a:visited  { color: navy }
body { background-color: #f5f5f5 }