codice:<style type="text/css">

body {
  text-align: center; 
}
#container {
  text-align: left; 
  width: 768px; 
  margin: 0 auto;
}

a:link {text-decoration: none; font-size: 10pt;}a:visited {text-decoration: none; color: green; font-size: 10pt;}
a:hover {color: red; font-size: 12pt;}