/*
	A. Mini Reset 
*/
*, *:after, *:before {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
  }
  
  * {
    margin: 0;
    padding: 0;
  }
  
  ::before,
  ::after {
    content: "";
  }
  
  html,
  body {
    height: 100%;
    -webkit-font-smoothing: subpixel-antialiased;
  }
  
  html {
    font-size: 100%;
  }
  
  body {
    background: #ecf0f1;
    color: #34495e;
    font-family: 'Lato', 'Arial', sans-serif;
    font-weight: 400;
    line-height: 1.2;
  }
  
  ul {
    margin: 0;
    padding: 0;
    list-style: none;
  }
  
  a {
    color: #2c3e50;
    text-decoration: none;
  }
  
  
  
  /* basic grid, only for this demo */
  /* .align {
    clear: both;
    margin: 90px auto 20px;
    width: 100%;
    max-width: 1170px;
    text-align: center;
  } */
  .b1{
    position: absolute;
    top: 130px;
    left: 8%;
  }
  .b2{
    position: absolute;
    top: 130px;
    right: 200px;
  }

  
  .align > li {
    /* width: 500px; */
    min-height: 300px;
    display: inline-block;
    margin: 30px 20px 30px 30px;
    padding: 0 0 0 60px;
    vertical-align: top;
  }
  
  /* ///////////////////////////////////////////////////
  
  HARDCOVER
  Table of Contents
  
  1. container
  2. background & color
  3. opening cover, back cover and pages
  4. position, transform y transition
  5. events
  6. Bonus
      - Cover design
      - Ribbon
      - Figcaption
  7. mini-reset
  
  /////////////////////////////////////////////////////*/
  /*
      1. container
  */
  .book {
    position: relative;
    width: 160px;
    height: 220px;
    -webkit-perspective: 1000px;
    -moz-perspective: 1000px;
    perspective: 1000px;
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    transform-style: preserve-3d;
  }
  
  /*
      2. background & color
  */
  /* HARDCOVER FRONT */
  .hardcover_front li:first-child {
    background-color: #eee;
    -webkit-backface-visibility: hidden;
    -moz-backface-visibility: hidden;
    backface-visibility: hidden;
  }
  
  /* reverse */
  .hardcover_front li:last-child {
    background: #fffbec;
  }
  
  /* HARDCOVER BACK */
  .hardcover_back li:first-child {
    background: #fffbec;
  }
  
  /* reverse */
  .hardcover_back li:last-child {
    background: #fffbec;
  }
  
  .book_spine li:first-child {
    background: #eee;
  }
  
  .book_spine li:last-child {
    background: #333;
  }
  
  /* thickness of cover */
  .hardcover_front li:first-child:after,
  .hardcover_front li:first-child:before,
  .hardcover_front li:last-child:after,
  .hardcover_front li:last-child:before,
  .hardcover_back li:first-child:after,
  .hardcover_back li:first-child:before,
  .hardcover_back li:last-child:after,
  .hardcover_back li:last-child:before,
  .book_spine li:first-child:after,
  .book_spine li:first-child:before,
  .book_spine li:last-child:after,
  .book_spine li:last-child:before {
    background: #999;
  }
  
  /* page */
  .page > li {
    background: -webkit-linear-gradient(left, #e1ddd8 0%, #fffbf6 100%);
    background: -moz-linear-gradient(left, #e1ddd8 0%, #fffbf6 100%);
    background: -ms-linear-gradient(left, #e1ddd8 0%, #fffbf6 100%);
    background: linear-gradient(to right, #e1ddd8 0%, #fffbf6 100%);
    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 5px 5px 0px;
  }
  
  /*
      3. opening cover, back cover and pages
  */
  .hardcover_front {
    -webkit-transform: rotateY(-34deg) translateZ(8px);
    -moz-transform: rotateY(-34deg) translateZ(8px);
    transform: rotateY(-34deg) translateZ(8px);
    z-index: 100;
  }
  
  .hardcover_back {
    -webkit-transform: rotateY(-15deg) translateZ(-8px);
    -moz-transform: rotateY(-15deg) translateZ(-8px);
    transform: rotateY(-15deg) translateZ(-8px);
  }
  
  .page li:nth-child(1) {
    -webkit-transform: rotateY(-28deg);
    -moz-transform: rotateY(-28deg);
    transform: rotateY(-28deg);
  }
  
  .page li:nth-child(2) {
    -webkit-transform: rotateY(-30deg);
    -moz-transform: rotateY(-30deg);
    transform: rotateY(-30deg);
  }
  
  .page li:nth-child(3) {
    -webkit-transform: rotateY(-32deg);
    -moz-transform: rotateY(-32deg);
    transform: rotateY(-32deg);
  }
  
  .page li:nth-child(4) {
    -webkit-transform: rotateY(-34deg);
    -moz-transform: rotateY(-34deg);
    transform: rotateY(-34deg);
  }
  
  .page li:nth-child(5) {
    -webkit-transform: rotateY(-36deg);
    -moz-transform: rotateY(-36deg);
    transform: rotateY(-36deg);
  }
  
  /*
      4. position, transform & transition
  */
  .hardcover_front,
  .hardcover_back,
  .book_spine,
  .hardcover_front li,
  .hardcover_back li,
  .book_spine li {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    transform-style: preserve-3d;
  }
  
  .hardcover_front,
  .hardcover_back {
    -webkit-transform-origin: 0% 100%;
    -moz-transform-origin: 0% 100%;
    transform-origin: 0% 100%;
  }
  
  .hardcover_front {
    -webkit-transition: all 0.8s ease, z-index 0.6s;
    -moz-transition: all 0.8s ease, z-index 0.6s;
    transition: all 0.8s ease, z-index 0.6s;
  }
  
  /* HARDCOVER front */
  .hardcover_front li:first-child {
    cursor: default;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
    -webkit-transform: translateZ(2px);
    -moz-transform: translateZ(2px);
    transform: translateZ(2px);
  }
  
  .hardcover_front li:last-child {
    -webkit-transform: rotateY(180deg) translateZ(2px);
    -moz-transform: rotateY(180deg) translateZ(2px);
    transform: rotateY(180deg) translateZ(2px);
  }
  
  /* HARDCOVER back */
  .hardcover_back li:first-child {
    -webkit-transform: translateZ(2px);
    -moz-transform: translateZ(2px);
    transform: translateZ(2px);
  }
  
  .hardcover_back li:last-child {
    -webkit-transform: translateZ(-2px);
    -moz-transform: translateZ(-2px);
    transform: translateZ(-2px);
  }
  
  /* thickness of cover */
  .hardcover_front li:first-child:after,
  .hardcover_front li:first-child:before,
  .hardcover_front li:last-child:after,
  .hardcover_front li:last-child:before,
  .hardcover_back li:first-child:after,
  .hardcover_back li:first-child:before,
  .hardcover_back li:last-child:after,
  .hardcover_back li:last-child:before,
  .book_spine li:first-child:after,
  .book_spine li:first-child:before,
  .book_spine li:last-child:after,
  .book_spine li:last-child:before {
    position: absolute;
    top: 0;
    left: 0;
  }
  
  /* HARDCOVER front */
  .hardcover_front li:first-child:after,
  .hardcover_front li:first-child:before {
    width: 4px;
    height: 100%;
  }
  
  .hardcover_front li:first-child:after {
    -webkit-transform: rotateY(90deg) translateZ(-2px) translateX(2px);
    -moz-transform: rotateY(90deg) translateZ(-2px) translateX(2px);
    transform: rotateY(90deg) translateZ(-2px) translateX(2px);
  }
  
  .hardcover_front li:first-child:before {
    -webkit-transform: rotateY(90deg) translateZ(158px) translateX(2px);
    -moz-transform: rotateY(90deg) translateZ(158px) translateX(2px);
    transform: rotateY(90deg) translateZ(158px) translateX(2px);
  }
  
  .hardcover_front li:last-child:after,
  .hardcover_front li:last-child:before {
    width: 4px;
    height: 160px;
  }
  
  .hardcover_front li:last-child:after {
    -webkit-transform: rotateX(90deg) rotateZ(90deg) translateZ(80px) translateX(-2px) translateY(-78px);
    -moz-transform: rotateX(90deg) rotateZ(90deg) translateZ(80px) translateX(-2px) translateY(-78px);
    transform: rotateX(90deg) rotateZ(90deg) translateZ(80px) translateX(-2px) translateY(-78px);
  }
  
  .hardcover_front li:last-child:before {
    box-shadow: 0px 0px 30px 5px #333;
    -webkit-transform: rotateX(90deg) rotateZ(90deg) translateZ(-140px) translateX(-2px) translateY(-78px);
    -moz-transform: rotateX(90deg) rotateZ(90deg) translateZ(-140px) translateX(-2px) translateY(-78px);
    transform: rotateX(90deg) rotateZ(90deg) translateZ(-140px) translateX(-2px) translateY(-78px);
  }
  
  /* thickness of cover */
  .hardcover_back li:first-child:after,
  .hardcover_back li:first-child:before {
    width: 4px;
    height: 100%;
  }
  
  .hardcover_back li:first-child:after {
    -webkit-transform: rotateY(90deg) translateZ(-2px) translateX(2px);
    -moz-transform: rotateY(90deg) translateZ(-2px) translateX(2px);
    transform: rotateY(90deg) translateZ(-2px) translateX(2px);
  }
  
  .hardcover_back li:first-child:before {
    -webkit-transform: rotateY(90deg) translateZ(158px) translateX(2px);
    -moz-transform: rotateY(90deg) translateZ(158px) translateX(2px);
    transform: rotateY(90deg) translateZ(158px) translateX(2px);
  }
  
  .hardcover_back li:last-child:after,
  .hardcover_back li:last-child:before {
    width: 4px;
    height: 160px;
  }
  
  .hardcover_back li:last-child:after {
    -webkit-transform: rotateX(90deg) rotateZ(90deg) translateZ(80px) translateX(2px) translateY(-78px);
    -moz-transform: rotateX(90deg) rotateZ(90deg) translateZ(80px) translateX(2px) translateY(-78px);
    transform: rotateX(90deg) rotateZ(90deg) translateZ(80px) translateX(2px) translateY(-78px);
  }
  
  .hardcover_back li:last-child:before {
    box-shadow: 10px -1px 80px 20px #666;
    -webkit-transform: rotateX(90deg) rotateZ(90deg) translateZ(-140px) translateX(2px) translateY(-78px);
    -moz-transform: rotateX(90deg) rotateZ(90deg) translateZ(-140px) translateX(2px) translateY(-78px);
    transform: rotateX(90deg) rotateZ(90deg) translateZ(-140px) translateX(2px) translateY(-78px);
  }
  
  /* BOOK SPINE */
  .book_spine {
    -webkit-transform: rotateY(60deg) translateX(-5px) translateZ(-12px);
    -moz-transform: rotateY(60deg) translateX(-5px) translateZ(-12px);
    transform: rotateY(60deg) translateX(-5px) translateZ(-12px);
    width: 16px;
    z-index: 0;
  }
  
  .book_spine li:first-child {
    -webkit-transform: translateZ(2px);
    -moz-transform: translateZ(2px);
    transform: translateZ(2px);
  }
  
  .book_spine li:last-child {
    -webkit-transform: translateZ(-2px);
    -moz-transform: translateZ(-2px);
    transform: translateZ(-2px);
  }
  
  /* thickness of book spine */
  .book_spine li:first-child:after,
  .book_spine li:first-child:before {
    width: 4px;
    height: 100%;
  }
  
  .book_spine li:first-child:after {
    -webkit-transform: rotateY(90deg) translateZ(-2px) translateX(2px);
    -moz-transform: rotateY(90deg) translateZ(-2px) translateX(2px);
    transform: rotateY(90deg) translateZ(-2px) translateX(2px);
  }
  
  .book_spine li:first-child:before {
    -webkit-transform: rotateY(-90deg) translateZ(-12px);
    -moz-transform: rotateY(-90deg) translateZ(-12px);
    transform: rotateY(-90deg) translateZ(-12px);
  }
  
  .book_spine li:last-child:after,
  .book_spine li:last-child:before {
    width: 4px;
    height: 16px;
  }
  
  .book_spine li:last-child:after {
    -webkit-transform: rotateX(90deg) rotateZ(90deg) translateZ(8px) translateX(2px) translateY(-6px);
    -moz-transform: rotateX(90deg) rotateZ(90deg) translateZ(8px) translateX(2px) translateY(-6px);
    transform: rotateX(90deg) rotateZ(90deg) translateZ(8px) translateX(2px) translateY(-6px);
  }
  
  .book_spine li:last-child:before {
    box-shadow: 5px -1px 100px 40px rgba(0, 0, 0, 0.2);
    -webkit-transform: rotateX(90deg) rotateZ(90deg) translateZ(-210px) translateX(2px) translateY(-6px);
    -moz-transform: rotateX(90deg) rotateZ(90deg) translateZ(-210px) translateX(2px) translateY(-6px);
    transform: rotateX(90deg) rotateZ(90deg) translateZ(-210px) translateX(2px) translateY(-6px);
  }
  
  .page,
  .page > li {
    position: absolute;
    top: 0;
    left: 0;
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    transform-style: preserve-3d;
  }
  
  .page {
    width: 100%;
    height: 98%;
    top: 1%;
    left: 3%;
    z-index: 10;
  }
  
  .page > li {
    width: 100%;
    height: 100%;
    -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;
  }
  
  .page > li:nth-child(1) {
    -webkit-transition-duration: 0.6s;
    -moz-transition-duration: 0.6s;
    transition-duration: 0.6s;
  }
  
  .page > li:nth-child(2) {
    -webkit-transition-duration: 0.6s;
    -moz-transition-duration: 0.6s;
    transition-duration: 0.6s;
  }
  
  .page > li:nth-child(3) {
    -webkit-transition-duration: 0.4s;
    -moz-transition-duration: 0.4s;
    transition-duration: 0.4s;
  }
  
  .page > li:nth-child(4) {
    -webkit-transition-duration: 0.5s;
    -moz-transition-duration: 0.5s;
    transition-duration: 0.5s;
  }
  
  .page > li:nth-child(5) {
    -webkit-transition-duration: 0.6s;
    -moz-transition-duration: 0.6s;
    transition-duration: 0.6s;
  }
  
  /*
      5. events
  */
  .book:hover > .hardcover_front {
    -webkit-transform: rotateY(-145deg) translateZ(0);
    -moz-transform: rotateY(-145deg) translateZ(0);
    transform: rotateY(-145deg) translateZ(0);
    z-index: 0;
  }
  
  .book:hover > .page li:nth-child(1) {
    -webkit-transform: rotateY(-30deg);
    -moz-transform: rotateY(-30deg);
    transform: rotateY(-30deg);
    -webkit-transition-duration: 1.5s;
    -moz-transition-duration: 1.5s;
    transition-duration: 1.5s;
  }
  
  .book:hover > .page li:nth-child(2) {
    -webkit-transform: rotateY(-35deg);
    -moz-transform: rotateY(-35deg);
    transform: rotateY(-35deg);
    -webkit-transition-duration: 1.8s;
    -moz-transition-duration: 1.8s;
    transition-duration: 1.8s;
  }
  
  .book:hover > .page li:nth-child(3) {
    -webkit-transform: rotateY(-118deg);
    -moz-transform: rotateY(-118deg);
    transform: rotateY(-118deg);
    -webkit-transition-duration: 1.6s;
    -moz-transition-duration: 1.6s;
    transition-duration: 1.6s;
  }
  
  .book:hover > .page li:nth-child(4) {
    -webkit-transform: rotateY(-130deg);
    -moz-transform: rotateY(-130deg);
    transform: rotateY(-130deg);
    -webkit-transition-duration: 1.4s;
    -moz-transition-duration: 1.4s;
    transition-duration: 1.4s;
  }
  
  .book:hover > .page li:nth-child(5) {
    -webkit-transform: rotateY(-140deg);
    -moz-transform: rotateY(-140deg);
    transform: rotateY(-140deg);
    -webkit-transition-duration: 1.2s;
    -moz-transition-duration: 1.2s;
    transition-duration: 1.2s;
  }
  
  /*
      6. Bonus
  */
  /* cover CSS */
  .coverDesign {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    overflow: hidden;
    -webkit-backface-visibility: hidden;
    -moz-backface-visibility: hidden;
    backface-visibility: hidden;
  }
  
  .coverDesign::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%, rgba(0, 0, 0, 0) 100%);
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
  }
  
  .coverDesign h1 {
    color: #fff;
    font-size: 2.2em;
    letter-spacing: 0.05em;
    text-align: center;
    margin: 54% 0 0 0;
    text-shadow: -1px -1px 0 rgba(0, 0, 0, 0.1);
  }
  
  .coverDesign p {
    color: #f8f8f8;
    font-size: 1em;
    text-align: center;
    text-shadow: -1px -1px 0 rgba(0, 0, 0, 0.1);
  }
  
  .yellow {
    background-color: #f1c40f;
    background-image: -webkit-linear-gradient(top, #f1c40f 58%, #e7ba07 0%);
    background-image: -moz-linear-gradient(top, #f1c40f 58%, #e7ba07 0%);
    background-image: linear-gradient(to bottom, #f1c40f 58%, #e7ba07 0%);
  }
  
  .blue {
    background-color: #3498db;
    background-image: -webkit-linear-gradient(top, #3498db 58%, #2a90d4 0%);
    background-image: -moz-linear-gradient(top, #3498db 58%, #2a90d4 0%);
    background-image: linear-gradient(to bottom, #3498db 58%, #2a90d4 0%);
  }
  
  .grey {
    background-color: #f8e9d1;
    background-image: -webkit-linear-gradient(top, #f8e9d1 58%, #e7d5b7 0%);
    background-image: -moz-linear-gradient(top, #f8e9d1 58%, #e7d5b7 0%);
    background-image: linear-gradient(to bottom, #f8e9d1 58%, #e7d5b7 0%);
  }
  
  /* Basic ribbon */
  .ribbon {
    color: #fff;
    display: block;
    font-size: 0.7em;
    position: absolute;
    top: 11px;
    right: 1px;
    width: 40px;
    height: 20px;
    line-height: 20px;
    letter-spacing: 0.15em;
    text-align: center;
    -webkit-transform: rotateZ(45deg) translateZ(1px);
    -moz-transform: rotateZ(45deg) translateZ(1px);
    transform: rotateZ(45deg) translateZ(1px);
    -webkit-backface-visibility: hidden;
    -moz-backface-visibility: hidden;
    backface-visibility: hidden;
    z-index: 10;
  }
  .ribbon.new {
    background: #63c930;
  }
  .ribbon.new:before, .ribbon.new:after {
    border-bottom: 20px solid #63c930;
  }
  .ribbon.bestseller {
    background: #c0392b;
  }
  .ribbon.bestseller:before, .ribbon.bestseller:after {
    border-bottom: 20px solid #c0392b;
  }
  
  .ribbon::before,
  .ribbon::after {
    position: absolute;
    top: -20px;
    width: 0;
    height: 0;
    border-top: 20px solid transparent;
  }
  
  .ribbon::before {
    left: -20px;
    border-left: 20px solid transparent;
  }
  
  .ribbon::after {
    right: -20px;
    border-right: 20px solid transparent;
  }
  
  
  /* Media Queries */
  @media screen and (max-width: 37.8125em) {
    .align > li {
      width: 100%;
      min-height: 440px;
      height: auto;
      padding: 0;
      margin: 0 0 30px 0;
    }
  
    .book {
      margin: 0 auto;
    }
  
  }