style.css

html,
body {
    background-size: cover;
    height: 100%;
    margin: 0;
    overflow: hidden;
}

.flipbook {
    height: 100%;
}

.wrapper {
    align-items: center;
    display: flex;
    height: 90%;
    justify-content: center;
    margin: 5%;
    width: 90%;
}

.aspect {
    padding-bottom: 70%;
    position: relative;
    width: 100%;
}

.aspect-inner {
    bottom: 0;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
}

.flipbook {
    height: 100%;
    transition: margin-left 0.25s ease-out;
    width: 100%;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.flipbook .page {
    height: 100%;
    width: 100%;
}

.flipbook .page img {
    max-width: 100%;
    height: 100%;
}

div.flip-control {
    width: 400px;
    text-align: center;
}

div.flip-control a {
    margin-left: 10px;
}