body { color: black; background-color: white; font-family: arial; }

a.internal:link { text-decoration: none; color: orange }
a.internal:visited { text-decoration: none; color: orange }
a.internal:hover { text-decoration: none; color: red; background-color: silver }
a.internal:active { text-decoration: none; color: red; } 
a.external:link { text-decoration: none; color: 003366 }
a.external:visited { text-decoration: none; color: #003366 }
a.external:hover { text-decoration: none; color: red; background-color: #CCCCCC } 
a.external:active { text-decoration: none; color: red;}