html {
    background-color: #000;
}

.position-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: max-content;
    max-width: 100%;
    box-sizing: border-box;
    padding: 1em;
}

.position-bottom {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 1.25em auto;
    width: 100%;
    text-align: center;
}

.position-bottom small {
    color: #aaa;
}

.fa-4 {
    font-size: 4em;
    color: #fff;
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
    text-align: center;
}

ul li {
    display: inline-block;
    margin: 3.14em 3.14em;
}