body {
    display: table;
    padding: 0 0 0 0;
    margin: 0 0 0 0;
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #111;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #999;
    font-size: 100%;
}

div {
    display: table-cell;
    position: absolute;
    text-align: center;
    vertical-align: middle;
    top: 10%;
    right: 0;
    bottom: 50%;
    left: 0;
    font-size: 1em;
}
div > h3 {
    font-size: 3.5em;
    margin: 0;
    padding: 0;
}
div > h3 > span {
    white-space: nowrap;
}

audio {
    display: none;
    visibility: collapse;
    opacity: 0;
}