body {
    text-align: center;
}
.menu {
    color: white;
    background: black;
    width: 100%;
    padding: 1px 10px;
}
.menu a {
    color: white;
    display: inline-block;
    padding: 0 3px;
}
.menu a:hover {
    color: black;
    text-decoration: none;
    background: white;
}