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              .book.bound
  .pages
    .page
      h1 Boyhood
      h2 by Jason Hibbs
    .page <!--endpaper-->
    .page <!--endpaper-->
    .page <!--colophon-->
    .page <!--title-->
    .page <!--01-->
    .page There was a boy<br>Who had it rough
    .page His adventure<br>Was to be tough
    .page <!--04-->
    .page <!--05-->
    .page He knew his Mother<br>Had left this land
    .page He knew his Father<br>Like the back of his hand
    .page <!--08-->
    .page There were monsters<br>He had to fight
    .page <!--10-->
    .page <!--11-->
    .page He sometimes hid<br>He never cried
    .page There was a boy<br>Who was afraid
    .page Who wore armour<br>That he had made
    .page <!--15-->
    .page There was a boy<br>Who met a girl
    .page <!--17-->
    .page He met a girl<br>Who changed his world
    .page <!--19-->
    .page Who saw the armour<br>And looked inside
    .page And inside…
    .page <!--22-->
    .page There was a boy.
    .page <!--24-->
    .page <!--endpaper-->
    .page <!--endpaper-->
    .page <!--backcover-->
            
          
!
            
              @p_w: 36vw;
@p_h: (@p_w * 0.75);
@p_c: #fff;
@p_r: 4px;
@p_f: 1.4s;
@p_d: 20%;
@bg: mix(#fff, desaturate(#E9CB8F, 50%), 50%);

.book {
  transition: opacity 0.4s 0.2s;
}

.book:not(.bound) {
  //opacity: 0;
}

.page {
  width: (@p_w);
  height: (@p_h);
  background-colour: @p_c;
  float: left;
  margin-bottom: 0.5em;

  &:first-child {
    float: right;
  }

  &:nth-child(even) {
    clear: both;
  }
}

.bound {
  perspective: 250vw;
  
  .pages {
    width: (@p_w * 2);
    height: @p_h;
    position: relative;
    transform: rotateX(12deg);
    transform-style: preserve-3d;
    backface-visibility: hidden;
    border-radius: @p_r;
    box-shadow: 0 0 0 1px @bg;
  }
  
  .page {
    float: none;
    clear: none;
    margin: 0;
    position: absolute;
    top: 0;
    width: @p_w;
    height: @p_h;
    transform-origin: 0 0;
    transition: transform @p_f;
    backface-visibility: hidden;
    transform-style: preserve-3d;
    cursor: pointer;
    user-select: none;

    &:before {
      content: '';
      position: absolute;
      top: 0; bottom: 0;
      left: 0; right: 0;
      background: fadeout(#000, 100%);
      transition: background (@p_f / 2);
      z-index: 2;
    }

    &:nth-child(odd) {
      pointer-events: all;
      transform: rotateY(0deg);
      right: 0;
      border-radius: 0 @p_r @p_r 0;

      &:hover {
        transform: rotateY(-10deg);
        &:before {
          background: fadeout(#000, 97%);
        }
      }

      &:before {
        background: fadeout(#000, 100%);
      }
    }

    &:nth-child(even) {
      pointer-events: none;
      transform: rotateY(180deg);
      transform-origin: 100% 0;
      left: 0;
      border-radius: @p_r 0 0 @p_r;

      &:before {
        background: fadeout(#000, (100% - @p_d));
      }
    }

    &.grabbing {
      transition: none;
    }

    &.flipped {

      &:nth-child(odd) {
        pointer-events: none;
        transform: rotateY(-180deg);
        &:before {
          background: fadeout(#000, (100% - @p_d));
        }
      }

      &:nth-child(even) {
        pointer-events: all;
        transform: rotateY(0deg);

        &:hover {
          transform: rotateY(10deg);
          &:before {
            background: fadeout(#000, 97%);
          }
        }

        &:before {
          background: fadeout(#000, 100%);
        }
      }
    }
  }
}


// General
* {
  &,:before,&:after {
    box-sizing: border-box;
  }
}

html, body {
  background: @bg;
  -webkit-tap-highlight-color: fadeout(#000, 100%);
}

html {
  height: 100%;
}

body {
  min-height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2em 0;
  line-height: 1.5em;
}

// These Pages
.page {
  color: transparent;
  background: left top no-repeat;
  background-size: cover;
}
.page:nth-child(3),
.page:nth-child(5),
.page:nth-child(7),
.page:nth-child(9),
.page:nth-child(11),
.page:nth-child(13),
.page:nth-child(15),
.page:nth-child(17),
.page:nth-child(19),
.page:nth-child(21),
.page:nth-child(23),
.page:nth-child(25),
.page:nth-child(27),
.page:nth-child(29),
.page:nth-child(31) {
  background-position: right top;
}

.page:nth-child(1) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_cover_f.jpg');
}
.page:nth-child(2),
.page:nth-child(3){
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_end_01.jpg');
}
.page:nth-child(4),
.page:nth-child(5) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_spread_00000.jpg');
}
.page:nth-child(6),
.page:nth-child(7) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_spread_00001.jpg');
}
.page:nth-child(8),
.page:nth-child(9) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_spread_00002.jpg');
}
.page:nth-child(10),
.page:nth-child(11) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_spread_00003.jpg');
}
.page:nth-child(12),
.page:nth-child(13) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_spread_00004.jpg');
}
.page:nth-child(14),
.page:nth-child(15) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_spread_00005.jpg');
}
.page:nth-child(16),
.page:nth-child(17) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_spread_00006.jpg');
}
.page:nth-child(18),
.page:nth-child(19) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_spread_00007.jpg');
}
.page:nth-child(20),
.page:nth-child(21) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_spread_00008.jpg');
}
.page:nth-child(22),
.page:nth-child(23) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_spread_00009.jpg');
}
.page:nth-child(24),
.page:nth-child(25) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_spread_00010.jpg');
}
.page:nth-child(26),
.page:nth-child(27) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_spread_00011.jpg');
}
.page:nth-child(28),
.page:nth-child(29) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_spread_00012.jpg');
}
.page:nth-child(30),
.page:nth-child(31) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_end_02.jpg');
}
.page:nth-child(32) {
  background-image: url('http://jasonhibbs.co.uk/wp-content/uploads/2015/02/bh_cover_b.jpg');
}
            
          
!
            
              var pages = $('.pages').children();
var grabs = false; // Gonna work on this, one day

pages.each(function(i) {
  var page = $(this);
  if (i % 2 === 0) {
    page.css('z-index', (pages.length - i)); 
  }
});

$(window).load(function() {
  
  $('.page').click(function() {
    var page = $(this);
    var page_num = pages.index(page) + 1;
    if (page_num % 2 === 0) {
      page.removeClass('flipped');
      page.prev().removeClass('flipped');
    } else {
      page.addClass('flipped');
      page.next().addClass('flipped');
    }
  });

  if (grabs) {
    $('.page').on('mousedown', function(e) {
      var page = $(this);
      var page_num = pages.index(page) + 1;
      var page_w = page.outerWidth();
      var page_l = page.offset().left;
      var grabbed = '';
      var mouseX = e.pageX;
      if (page_num % 2 === 0) {
        grabbed = 'verso';
        var other_page = page.prev();
        var centerX = (page_l + page_w);
      } else {
        grabbed = 'recto';
        var other_page = page.next();
        var centerX = page_l;
      }

      var leaf = page.add(other_page);

      var from_spine = mouseX - centerX;

      if (grabbed === 'recto') {
        var deg = (90 * -(1 - (from_spine/page_w)));
        page.css('transform', 'rotateY(' + deg + 'deg)');

      } else {
        var deg = (90 * (1 + (from_spine/page_w)));
        page.css('transform', 'rotateY(' + deg + 'deg)');
      }

      leaf.addClass('grabbing');

      $(window).on('mousemove', function(e) {
        mouseX = e.pageX;
        if (grabbed === 'recto') {
          centerX = page_l;
          from_spine = mouseX - centerX;
          var deg = (90 * -(1 - (from_spine/page_w)));
          page.css('transform', 'rotateY(' + deg + 'deg)');
          other_page.css('transform', 'rotateY(' + (180 + deg) + 'deg)');
        } else {
          centerX = (page_l + page_w);
          from_spine = mouseX - centerX;
          var deg = (90 * (1 + (from_spine/page_w)));
          page.css('transform', 'rotateY(' + deg + 'deg)');
          other_page.css('transform', 'rotateY(' + (deg - 180) + 'deg)');
        }

        console.log(deg, (180 + deg) );
      });


      $(window).on('mouseup', function(e) {
        leaf
          .removeClass('grabbing')
          .css('transform', '');

        $(window).off('mousemove');
      });
    });
  }
  
  $('.book').addClass('bound');
});
            
          
!
999px
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