.article {
    max-width: 800px;
    position: relative;
    top: 60px;
    margin: 0 auto;

    padding-left: 20px;
    border: 4px solid black;
    background-color: #212121;
    padding-left: 12px;
    padding-right: 15px;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.footer {
    display: flex;
    flex-flow: row wrap;
    justify-content: space-between;
    align-items: flex-start;
    list-style-type: none;
}

.footer li {
    display: inline;
}