.center {
display: block;
margin-left: auto;
margin-right: auto;
}


h3 a:link {
    color: black;
    text-decoration: none;
}


h3 a:visited {
    color: black;
    text-decoration: none;
}


h3 a:hover {
    color: gray;
    text-decoration: none;
}


h3 a:active {
    color: gray;
    text-decoration: none;
}