html, body, .container-table {
    height: 100%;
    background-color: black;
    color: white;
    font-family: 'Jura', sans-serif;
    font-size: 1.1em;
}
.container-table {
    display: table;
}
.vertical-center-row {
    display: table-cell;
    vertical-align: middle;
}