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

a {
    color: #2c3e50;
    text-decoration: none;
}

.graphic-header, .graphic-footer {
    background-color: #48bb87;
    color: white;
}

.graphic-header {
    padding: 0 !important;
}

.graphic-footer {
    padding: 2% 0 !important;
}

.graphic-subheader {
    padding: 0 0 20px 0 !important;
    color: gray;
}

.graphic-header h1 {
    text-transform: uppercase;
    font-size: 42px;
}

.btn {
    display: inline-block;
    margin-top: 100px; 
    font-size: 1.2em;
    font-weight: 700;
    padding: 0.1em 0.8em;
    text-align: center;
    -webkit-transform: rotate(20deg);
    -moz-transform: rotate(20deg);
    transform: rotate(20deg);
    font-family: "Indie Flower", serif;
    -webkit-transition: color 0.3s;
    -moz-transition: color 0.3s;
    transition: color 0.3s;
}

.btn:hover {
    color: #16a085;
}

/* basic grid, only for this demo */

.align {
    clear: both;
    margin: 0px auto 20px;
    width: 100%;
    max-width: 1170px;
    text-align: center;
    margin-bottom: 0px;
}

.align > li {
    width: 100%;
    display: inline-block;
    margin: 0 auto;
    vertical-align: top;
    padding: 5% 0;
}

.align > li:nth-child(even) {
    background-color: #ecf0f1;
}

/* ///////////////////////////////////////////////////

PAPERBACK
Table of Contents

1. container
2. background & color
3. opening cover, back cover and pages
4. position, transform y transition
5. events
6. Bonus
    - Ribbon
    - Figcaption
7. mini-reset

/////////////////////////////////////////////////////*/

/*
    1. container
*/

.component {
    max-width: 760px;
    margin: 0 auto;
    border: 2px solid lightgray;
    margin-top: 30px;
}
.book {
    position: relative;
    width: 160px; 
    height: 220px;
    margin-left: 20px;
    -webkit-perspective: 1500px;
    -moz-perspective: 1500px;
    perspective: 1500px;
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    transform-style: preserve-3d;
}

/*
    2. background & color
*/

/* HARDCOVER FRONT */

.paperback_front {
    background-color: #000;
}

.paperback_front::after{
    background-image: -webkit-linear-gradient( -135deg, rgba(255, 255, 255, 0.45) 0%, transparent 100%);
    background-image: -moz-linear-gradient( -135deg, rgba(255, 255, 255, 0.45) 0%, transparent 100%);
    background-image: linear-gradient( -135deg, rgba(255, 255, 255, 0.45) 0%, transparent 100%);
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
}

.paperback_back {
    background-color: #333;
}

/* page */

.ruled_paper > li {
    background-color: #fff;
    background-image: -webkit-linear-gradient(rgba(200, 200, 200, 0.1) 0.1em, transparent 0.1em), -webkit-linear-gradient(left, #e1ddd8 0%, #fffbf6 100%);
    background-image: -moz-linear-gradient(rgba(200, 200, 200, 0.1) 0.1em, transparent 0.1em), -moz-linear-gradient(left, #e1ddd8 0%, #fffbf6 100%);
    background-image: -ms-linear-gradient(rgba(200, 200, 200, 0.1) 0.1em, transparent 0.1em), -moz-linear-gradient(left, #e1ddd8 0%, #fffbf6 100%);
    background-image: linear-gradient(rgba(200, 200, 200, 0.1) 0.1em, transparent 0.1em), linear-gradient(left, #e1ddd8 0%, #fffbf6 100%);
    background-size: 100% 0.6em;
    box-shadow: inset 0px -1px 2px rgba(50, 50, 50, 0.1), inset -1px 0px 1px rgba(150, 150, 150, 0.2);
    border-radius: 0px 10px 10px 0px;
}

/*
    3. opening cover, back cover and pages
*/

.paperback_front {
    -webkit-transform: rotateY(-38deg) translateZ(0px);
    -moz-transform: rotateY(-38deg) translateZ(0px);
    transform: rotateY(-38deg) translateZ(0px);
    z-index: 100;
}

.paperback_back {
    -webkit-transform: rotateY(-25deg);
    -moz-transform: rotateY(-25deg);
    transform: rotateY(-25deg);
}

.ruled_paper li:nth-child(1) {
    -webkit-transform: rotateY(-27deg);
    -moz-transform: rotateY(-27deg);
    transform: rotateY(-27deg);
}

.ruled_paper li:nth-child(2) {
    -webkit-transform: rotateY(-29deg);
    -moz-transform: rotateY(-29deg);
    transform: rotateY(-29deg);
}

.ruled_paper li:nth-child(3) {
    -webkit-transform: rotateY(-31deg);
    -moz-transform: rotateY(-31deg);
    transform: rotateY(-31deg);
}

.ruled_paper li:nth-child(4) {
    -webkit-transform: rotateY(-33deg);
    -moz-transform: rotateY(-33deg);
    transform: rotateY(-33deg);
}

.ruled_paper li:nth-child(5) {
    -webkit-transform: rotateY(-35deg);
    -moz-transform: rotateY(-35deg);
    transform: rotateY(-35deg);
}

/*
    4. position, transform y transition
*/

.paperback_front,
.paperback_back,
.paperback_front li,
.paperback_back li {
    border-radius: 2px 8px 8px 2px;
    position: absolute;
    top: 0;
    left: 0px;
    width: 100%;
    height: 100%;
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    transform-style: preserve-3d;
}

.paperback_front,
.paperback_back {
    -webkit-transform-origin: 0% 100%;
    -moz-transform-origin: 0% 100%;
    transform-origin: 0% 100%;
}

.paperback_front{
    -webkit-transition: all 0.5s ease, z-index 0.6s;
    -moz-transition: all 0.5s ease, z-index 0.6s;
    transition: all 0.5s ease, z-index 0.6s;
}

.paperback_front li img,
.paperback_back li img {
    border-radius: 2px 8px 8px 2px;
    position: absolute;
    top: 0;
    left: 0;
}

/* Ruled paper */

.ruled_paper,
.ruled_paper > li {
    position: absolute;
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    transform-style: preserve-3d;
}

.ruled_paper {
    width: 98%;
    height: 98%;
    top: 1%;
    left: 1%;
    z-index: 10;
}

.ruled_paper > li {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.ruled_paper > li {
    -webkit-transform-origin: left center;
    -moz-transform-origin: left center;
    transform-origin: left center;
    -webkit-transition-property: transform;
    -moz-transition-property: transform;
    transition-property: transform;
    -webkit-transition-timing-function: ease;
    -moz-transition-timing-function: ease;
    transition-timing-function: ease;
}

.ruled_paper li:nth-child(1) {
    -webkit-transition-duration: 0.6s;
    -moz-transition-duration: 0.6s;
    transition-duration: 0.6s;
}

.ruled_paper li:nth-child(2) {
    -webkit-transition-duration: 0.6s;
    -moz-transition-duration: 0.6s;
    transition-duration: 0.6s;
}

.ruled_paper li:nth-child(3) {
    -webkit-transition-duration: 0.4s;
    -moz-transition-duration: 0.4s;
    transition-duration: 0.4s;
}

.ruled_paper li:nth-child(4) {
    -webkit-transition-duration: 0.5s;
    -moz-transition-duration: 0.5s;
    transition-duration: 0.5s;
}

.ruled_paper li:nth-child(5) {
    -webkit-transition-duration: 0.5s;
    -moz-transition-duration: 0.5s;
    transition-duration: 0.5s;
}

/* Cover colors */
.green {
    background: #2ecc71;
}

.red {
    background: #cb0000;
}

/* figcaption */

figcaption {
    text-align: left;
    position: absolute;
    top: 0%;
    left: 170px;
    width: 550px;
    -webkit-backface-visibility: hidden;
}

figcaption h1 {
    margin: 0;
}

figcaption span {
    color: #48bb87;
    padding: 0.6em 0 1em 0;
    display: block;
}

figcaption p {
    margin-top: 0px;
    color: #63707d;
    line-height: 1.4;
    font-size: 1.5em;
}