a:link{
    color:black;
    text-decoration:none;
    font-weight:bold;
    background:none;
}
a:active{
    color:black;
    text-decoration:none;
    font-weight:bold;
    background:none;
}
a:visited{
    color:red;
    text-decoration:none;
    font-weight:bold;
    background:none;
}
a:hover{
    color:white;
    text-decoration:none;
    font-weight:bold;
    background:black;
}