a.sfondo:link { text-decoration: none; color: #003366; background-color: #FFFFFF }
a.sfondo:visited { text-decoration: none; color: #003366; background-color: #FFFFFF }
a.sfondo:active { text-decoration: none; color: #003366; background-color: #FFFFFF }
a.sfondo:hover { background-color: #003366; color: #FFFFFF; text-decoration: none }