a
 {
color:black;text-decoration: none
}

a:hover 
{
color:white; background-color:black; text-decoration:underline
}

a.menu
{
color: black; background-color: red; font-weight:900
}

a.menu:hover 
{
color:red; background-color:black; text-decoration:underline;font-weight:900
}