footer {
    text-align: left;
    background-color: #f3f3f3;
    color: #333;
    width: 100%;
    box-sizing: border-box;
    /*margin-top: auto; !* Pushes footer to the bottom *!*/
    visibility: visible;
    z-index: 4;
    padding: 10px 20px;
    font-size: small;
}

.footer-link {
    color: #333;
    text-decoration: none;
    margin: 0 5px;
    font-size: small;
}

.footer-link:hover {
    text-decoration: underline;
}