html {
    height: 100%;
    background-color: #111;
    box-sizing: border-box;
}

body {
    height: 100%;
    background-color: #111;
    margin: 0;
    padding: 0;
}

.wrap {
    text-align: center;
    display: table;
    width: 100%;
    height: 100%;
    min-height: 100%;
    background-color: #080808;
}

.inner-wrap {
    display: table-cell;
    vertical-align: middle;
}

.inner-wrap img {
    max-width: 100%;
}