a {text-decoration: none; border-bottom: 1px dotted;}
a:hover {background-color: yellow; color: black;}
a.menu {text-decoration: none; border-bottom: 0; padding-left:5px; padding-right:5px; background-color:black; color:gold;}
a.menu:hover {text-decoration: none; padding-left:5px; padding-right:5px; background-color:#0033FF; color:white;}
font.menu:hover {color: white;}
a.ext {text-decoration: underline; border-bottom: 0;}
abc.ext2 {border-bottom: 1px double;}
a.section {text-decoration:none; background-color:white; color:blue;}
a.section span {visibility:hidden;}
a.section:hover span {visibility:visible;}