.tasto {  font-family: Arial, Helvetica, sans-serif; font-size: 14px; font-weight: 600; text-decoration: none; background-color: #FF0000; border: 5px #000000 none; text-align: center}
a {  font-family: Arial, Helvetica, sans-serif; font-size: 16px; color: #000000; text-decoration: none}
a:hover {  font-family: Arial, Helvetica, sans-serif; font-size: 14px; font-weight: 600; color: #0033CC}