body {background-position:center; background-size:cover; min-height:100vh; margin:0; padding:0;
      font-family:sans-serif; font-size:18px; text-shadow:2px 2px 3px #000;}
ul   {position:fixed; width:100%; padding:12px; text-align:center;}
li   {display:inline; margin-right:5px; padding:6px; border-radius:5px;}
a    {text-decoration:none; color:#adf;}
a[name*="a"] {color:#bec;}
p    {margin-top:44px; margin-bottom:44px; padding:5px; text-align:justify;}

#top {background:#8db;}
#tom {background:#7ca;}
#bot {background:#7be;}
#bom {background:#8ce;}

.map {display:block; margin-left:auto; margin-right:auto; opacity:0.6}
.map:hover {opacity:0.9}