/* General Demo Style */

    html {
        height: 100%;
    }

    *,
    *:after,
    *:before {
        -webkit-box-sizing: border-box;
        -moz-box-sizing: border-box;
        box-sizing: border-box;
        padding: 0;
        margin: 0;
    }


    /* Clearfix hack by Nicolas Gallagher: http://nicolasgallagher.com/micro-clearfix-hack/ */

    .clearfix:before,
    .clearfix:after {
        content: " ";
        display: table;
    }

    .clearfix:after {
        clear: both;
    }

    .clearfix {
        *zoom: 1;
    }

    body {
        background: #f6f6f6;
        font-weight: 400;
        font-size: 15px;
        color: #333;
        overflow: scroll;
        overflow-x: hidden;
    }

    .demo-2 body {
        background: url(https://tympanus.net/Development/3DBookShowcase/images/wood.jpg);
    }

    a {
        color: #555;
        text-decoration: none;
    }

    .container {
        width: 100%;
        position: relative;
    }

    .main,
    .container>header {
        width: 100%;
        max-width: 1060px;
        margin: 0 auto;
        position: relative;
        padding: 0;
    }

    .container>header {
        padding: 30px 30px 40px 30px;
    }

    .container>header h1 {
        font-size: 34px;
        line-height: 38px;
        margin: 0;
        font-weight: 700;
        color: #333;
        float: left;
    }


    /* Header Style */

    .codrops-top {
        line-height: 24px;
        font-size: 11px;
        background: #fff;
        background: rgba(255, 255, 255, 0.5);
        text-transform: uppercase;
        z-index: 9999;
        position: relative;
        box-shadow: 1px 0px 2px rgba(0, 0, 0, 0.2);
    }

    .codrops-top a {
        padding: 0px 10px;
        letter-spacing: 1px;
        color: #333;
        display: inline-block;
    }

    .codrops-top a:hover {
        background: rgba(255, 255, 255, 0.8);
        color: #000;
    }

    .codrops-top span.right {
        float: right;
    }

    .codrops-top span.right a {
        float: left;
        display: block;
    }


    /* Demo Buttons Style */

    .codrops-demos {
        float: right;
    }

    .codrops-demos a {
        display: inline-block;
        margin: 10px;
        color: #666;
        font-weight: 700;
        line-height: 30px;
        border-bottom: 4px solid transparent;
    }

    .codrops-demos a:hover {
        color: #000;
        border-color: #000;
    }

    .codrops-demos a.current-demo,
    .codrops-demos a.current-demo:hover {
        color: #aaa;
        border-color: #aaa;
    }

    .support-note {
        color: #d7823e;
        font-size: 16px;
        display: block;
        font-weight: bold;
        text-align: center;
        padding: 5px 0;
        text-align: left;
        clear: both;
    }

    .bookshelf {
        width: 100%;
        height: 63px;
        z-index: -1;
        margin-top: -25px;
        background: transparent url(https://tympanus.net/Development/3DBookShowcase/images/shelf.png) no-repeat center center;
        position: relative;
    }


    /*book showcase*/

    .bk-list {
        list-style: none;
        position: relative;
    }

    .bk-list li {
        position: relative;
        width: 300px;
        float: left;
        z-index: 1;
        margin: 0px 50px 40px 0;
        -webkit-perspective: 1800px;
        perspective: 1800px;
    }

    .bk-list li:last-child {
        margin-right: 0;
    }

    .bk-info {
        position: relative;
        margin-top: 440px;
    }

    .bk-info h3 {
        padding: 25px 0 10px;
        margin-bottom: 20px;
        border-bottom: 1px solid rgba(0, 0, 0, 0.3);
        font-size: 26px;
    }

    .bk-info h3 span:first-child {
        font-size: 14px;
        font-weight: 400;
        text-transform: uppercase;
        padding-bottom: 5px;
        display: block;
        color: #777;
    }

    .bk-info p {
        line-height: 24px;
        color: #444;
        min-height: 160px;
    }

    .bk-info button,
    .bk-info a {
        background: #000;
        border: none;
        color: #fff;
        display: inline-block;
        padding: 3px 15px;
        font-weight: 700;
        font-size: 14px;
        text-transform: uppercase;
        cursor: pointer;
        margin-right: 4px;
        box-shadow: 1px 1px 1px rgba(0, 0, 0, 0.15);
    }

    .bk-info button.bk-active,
    .bk-info button:active {
        box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8), inset 0 -1px 1px rgba(0, 0, 0, 0.2);
    }

    .no-touch .bk-info button:hover,
    .no-touch .bk-info a:hover,
    .bk-info button.bk-active {
        background: #545454;
    }

    .bk-list li .bk-book {
        position: absolute;
        width: 100%;
        height: 400px;
        -webkit-transform-style: preserve-3d;
        transform-style: preserve-3d;
        -webkit-transition: -webkit-transform .5s;
        transition: transform .5s;
    }

    .bk-list li .bk-book.bk-bookdefault:hover {
        -webkit-transform: rotate3d(0, 1, 0, 35deg);
        transform: rotate3d(0, 1, 0, 35deg);
    }

    .bk-list li .bk-book>div,
    .bk-list li .bk-front>div {
        display: block;
        position: absolute;
    }

    .bk-list li .bk-front {
        -webkit-transform-style: preserve-3d;
        transform-style: preserve-3d;
        -webkit-transform-origin: 0% 50%;
        transform-origin: 0% 50%;
        -webkit-transition: -webkit-transform .5s;
        transition: transform .5s;
        -webkit-transform: translate3d(0, 0, 20px);
        transform: translate3d(0, 0, 20px);
        z-index: 10;
    }

    .bk-list li .bk-front>div {
        z-index: 1;
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
        -webkit-transform-style: preserve-3d;
        transform-style: preserve-3d;
    }

    .bk-list li .bk-page {
        -webkit-transform: translate3d(0, 0, 19px);
        transform: translate3d(0, 0, 19px);
        display: none;
        width: 295px;
        height: 390px;
        top: 5px;
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
        z-index: 9;
    }

    .bk-list li .bk-front,
    .bk-list li .bk-back,
    .bk-list li .bk-front>div {
        width: 300px;
        height: 400px;
    }

    .bk-list li .bk-left,
    .bk-list li .bk-right {
        width: 40px;
        left: -20px;
    }

    .bk-list li .bk-top,
    .bk-list li .bk-bottom {
        width: 295px;
        height: 40px;
        top: -15px;
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
    }

    .bk-list li .bk-back {
        -webkit-transform: rotate3d(0, 1, 0, -180deg) translate3d(0, 0, 20px);
        transform: rotate3d(0, 1, 0, -180deg) translate3d(0, 0, 20px);
        box-shadow: 10px 10px 30px rgba(0, 0, 0, 0.3);
        border-radius: 3px 0 0 3px;
    }

    .bk-list li .bk-cover-back {
        background-color: #000;
        -webkit-transform: rotate3d(0, 1, 0, -179deg);
        transform: rotate3d(0, 1, 0, -179deg);
    }

    .bk-list li .bk-right {
        height: 390px;
        top: 5px;
        -webkit-transform: rotate3d(0, 1, 0, 90deg) translate3d(0, 0, 295px);
        -moz-transform: rotate3d(0, 1, 0, 90deg) translate3d(0, 0, 295px);
        transform: rotate3d(0, 1, 0, 90deg) translate3d(0, 0, 295px);
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
    }

    .bk-list li .bk-left {
        height: 400px;
        -webkit-transform: rotate3d(0, 1, 0, -90deg);
        transform: rotate3d(0, 1, 0, -90deg);
    }

    .bk-list li .bk-top {
        -webkit-transform: rotate3d(1, 0, 0, 90deg);
        transform: rotate3d(1, 0, 0, 90deg);
    }

    .bk-list li .bk-bottom {
        -webkit-transform: rotate3d(1, 0, 0, -90deg) translate3d(0, 0, 390px);
        transform: rotate3d(1, 0, 0, -90deg) translate3d(0, 0, 390px);
    }


    /* Transform classes */

    .bk-list li .bk-viewinside .bk-front {
        -webkit-transform: translate3d(0, 0, 20px) rotate3d(0, 1, 0, -160deg);
        transform: translate3d(0, 0, 20px) rotate3d(0, 1, 0, -160deg);
    }

    .bk-list li .bk-book.bk-viewinside {
        -webkit-transform: translate3d(0, 0, 150px) rotate3d(0, 1, 0, 0deg);
        transform: translate3d(0, 0, 150px) rotate3d(0, 1, 0, 0deg);
    }

    .bk-list li .bk-book.bk-viewback {
        -webkit-transform: translate3d(0, 0, 0px) rotate3d(0, 1, 0, 180deg);
        transform: translate3d(0, 0, 0px) rotate3d(0, 1, 0, 180deg);
    }


    /* Main colors and content */

    .bk-list li .bk-page,
    .bk-list li .bk-right,
    .bk-list li .bk-top,
    .bk-list li .bk-bottom {
        background-color: #fff;
    }

    .bk-list li .bk-front>div {
        border-radius: 0 3px 3px 0;
        box-shadow: inset 4px 0 10px rgba(0, 0, 0, 0.1);
    }

    .bk-list li .bk-front:after {
        content: '';
        position: absolute;
        top: 1px;
        bottom: 1px;
        left: -1px;
        width: 1px;
    }

    .bk-list li .bk-cover:after,
    .bk-list li .bk-back:after {
        content: '';
        position: absolute;
        top: 0;
        left: 10px;
        bottom: 0;
        width: 3px;
        background: rgba(0, 0, 0, 0.06);
        box-shadow: 1px 0 3px rgba(255, 255, 255, 0.1);
    }

    .bk-list li .bk-back:after {
        left: auto;
        right: 10px;
    }

    .bk-left h2 {
        width: 400px;
        height: 40px;
        -webkit-transform-origin: 0 0;
        -moz-transform-origin: 0 0;
        transform-origin: 0 0;
        -webkit-transform: rotate(90deg) translateY(-40px);
        transform: rotate(90deg) translateY(-40px);
    }

    .bk-content {
        position: absolute;
        top: 30px;
        left: 20px;
        bottom: 20px;
        right: 20px;
        padding: 30px;
        overflow: hidden;
        background: #fff;
        opacity: 0;
        pointer-events: none;
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
        -webkit-transition: opacity 0.3s ease-in-out;
        transition: opacity 0.3s ease-in-out;
        cursor: default;
    }

    .bk-content-current {
        opacity: 1;
        pointer-events: auto;
    }

    .bk-content p {
        padding: 0 0 10px;
        -webkit-font-smoothing: antialiased;
        color: #000;
        font-size: 13px;
        line-height: 20px;
        text-align: justify;
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        -khtml-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
    }

    .bk-page nav {
        display: block;
        text-align: center;
        margin-top: 20px;
        position: relative;
        z-index: 100;
        cursor: pointer;
    }

    .bk-page nav span {
        display: inline-block;
        width: 20px;
        height: 20px;
        color: #aaa;
        background: #f0f0f0;
        border-radius: 50%;
    }


    /* Individual style & artwork */


    /* Book 1 */

    .book-1 .bk-front>div,
    .book-1 .bk-back,
    .book-1 .bk-left,
    .book-1 .bk-front:after {
        background-color: #000;
    }

    .book-1 .bk-cover {
        background-image: url('../img/catalogue/tiles.webp');
        background-repeat: no-repeat;
        background-position: 10px 40px;
    }

    .book-1 .bk-cover h2 {
        position: absolute;
        bottom: 0;
        right: 0;
        left: 0;
        padding: 30px;
        background: rgba(255, 255, 255, 0.2);
        color: #fff;
        text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.1);
    }

    .book-1 .bk-cover h2 span:first-child,
    .book-1 .bk-left h2 span:first-child {
        text-transform: uppercase;
        font-weight: 400;
        font-size: 13px;
        padding-right: 20px;
    }

    .book-1 .bk-cover h2 span:first-child {
        display: block;
    }

    .book-1 .bk-cover h2 span:last-child,
    .book-1 .bk-left h2 span:last-child {
        font-family: "Poppins", serif;
    }
    .book-1 .bk-cover h2 span:last-child{
        font-size: 26px;
        font-weight: 600;
    }

    .book-1 .bk-content p {
        font-family: Poppins, Times, "Times New Roman", serif;
    }

    .book-1 .bk-left h2 {
        color: #fff;
        font-size: 15px;
        line-height: 40px;
        padding-right: 10px;
        text-align: right;
    }

    .book-1 .bk-back p {
        color: #fff;
        font-size: 13px;
        padding: 40px;
        text-align: center;
        font-weight: 700;
    }

