footer {
    height: 140px;
    width: 100%;
    background-color: black;

    text-align: center;
    color: grey;
}

footer a {
    display: inline-block;
    margin-top: 20px;
    text-decoration: none;
    color: grey;
}

footer a:hover {
    text-decoration: underline;
}

footer div {
    padding-top: 30px;
}