body {
  background: #929292;
  font-size: 36px;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  margin: auto;
  width: 1280px;
}

a {
  text-decoration: none;
}

.active {
  box-shadow: 0px 4px 8px rgba(0,0,0,.5);
  display: block;
  position: fixed;
}

.stack {
  border: solid 1px #000;
  background: #fff;
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -ms-box-sizing: border-box;
  -o-box-sizing: border-box;
  display: none;
  height: 800px;
  padding: 160px 80px;
  width: 1280px;
  -webkit-transform: translate3d(0,0,0);
}

.stack.full {
  height: 720px;
  padding: 0;
  width: 1280px;
}

section aside {
  background: #FFF8B8;
  background-image: -webkit-linear-gradient(top, #FFF8B8, #FEED77);
  box-shadow: 0 8px 16px rgba(0,0,0,.4);
  color: #000;
  display: block;
  font-size: 16px;
  padding: 16px;
  position: absolute;
  right: 40px;
  bottom: 120px;
  width: 328px;
  -o-transform: rotate(-1deg);
  -ms-transform: rotate(-1deg);
  -moz-transform: rotate(-1deg);
  -webkit-transform: rotate(-1deg);
}

section aside p:last-child {
  margin-bottom: 0;
}

section:nth-child(odd) aside {
  -o-transform: rotate(1deg);
  -ms-transform: rotate(1deg);
  -moz-transform: rotate(1deg);
  -webkit-transform: rotate(1deg);
}

.stack.title:after {
  background: #3182bd;
  content: "";
  display: block;
  height: 320px;
  left: 0;
  position: absolute;
  top: 0;
  width: 1280px;
}

.stack.chapter {
  background: #3182bd;
}

.stack.chapter h1,
.stack.chapter h2,
.stack.title h1 {
  color: #fff;
  text-shadow: 0 -1px 0 rgba(0,0,0,.5);
}

.stack.title h1 {
  z-index: 1;
}

.active {
  display: block;
  position: fixed;
}

h1, h2 {
  position: absolute;
  line-height: 1em;
  margin: 0;
  width: 1080px;
}

h1 {
  font-size: 2em;
  font-weight: 700;
  top: 120px;
}

h1.double {
  top: 80px;
}

h2 {
  font-size: 1em;
  bottom: 80px;
}

ul, pre {
  margin: 0;
}

pre, code {
  font-family: "Menlo", monospace;
}

pre {
  font-size: 48px;
}

q:before,
blockquote:before {
  content: "“";
}

q:after,
blockquote:after {
  content: "”";
}

q.nogap:after {
  position: absolute;
}

.purple,
.html .value,
.javascript .string,
.javascript .regexp {
  color: #756bb1;
}

a,
.blue,
.html .tag,
.css .tag,
.javascript .keyword {
  color: #3182bd;
}

.grey,
.comment {
  color: #636363;
}

.grey {
  font-weight: 300;
}

.green,
.html .doctype,
.javascript .number {
  color: #31a354;
}

.orange,
.html .attribute,
.css .attribute,
.javascript .class,
.javascript .special {
  color: #e6550d;
}

.pink {
  color: #e377c2;
}

@media
screen and (max-device-width: 1024px) {
  body {
    width: 1200px;
  }

  .stack {
    display: block;
    box-shadow: none;
    margin: 40px 0;
    -webkit-transform: none;
  }
}