html, body{height:100%}
body { margin:0; padding:0; font:12px Arial, Tahoma, Helvetica, sans-serif; text-align:center; background:#000; color:#ccc; }
            
/* tabella per il centraggio verticale */
#wrapper{height:100%; margin:auto;}

a { color:#fff; text-decoration:none; }
a:hover { text-decoration:underline; }