body {
  background: #FAFAFA;
  font-family: "Roboto", sans-serif;
  font-weight: 300;
}

h1 {
  font-weight: 300;
  font-size: 2.5em;
  line-height: 2.5em;
}
h1 span {
  font-size: 1.5em;
  color: #6699ff;
  opacity: 0.25;
}

strong {
  font-weight: 500;
}

h3 {
  font-weight: 300;
}

h3, a {
  color: #6699ff;
}

a {
  text-decoration: none;
  -webkit-transition: color 300ms;
}
a:hover {
  color: black;
}

article, h1 {
  margin-left: 300px;
}

section {
  padding-bottom: 50px;
  margin-bottom: 50px;
  border-bottom: 1px solid #DDD;
  width: 950px;
}

p {
  text-align: left;
  width: 600px;
  padding-bottom: 10px;
}

body > textarea {
  width: 750px;
}

.scroll-nav {
  position: fixed;
  text-align: left;
  left: 20px;
  top: 100px;
}
.scroll-nav .scroll-nav-list {
  text-indent: none;
  padding: 0;
  list-style: none;
}
.scroll-nav .scroll-nav-list .scroll-nav-item {
  margin: 10px 0;
  -webkit-transition: -webkit-transform 500ms;
}
.scroll-nav .scroll-nav-list .scroll-nav-item.active {
  font-weight: 500;
  -webkit-transform: translate(10px, 0);
}

pre.error {
  background-color: #6699ff;
  color: white;
}

textarea, pre {
  resize: none;
  text-align: left;
  background: white;
  width: 400px;
  margin: 10px 0;
  padding: 5px;
  overflow: auto;
  border: none;
  height: 300px;
  outline: none;
  display: inline-block;
  vertical-align: middle;
  font-family: "Anonymous Pro", sans-serif;
  font-size: 1em;
  border-radius: 3px;
  -webkit-transition: box-shadow 300ms, color 300ms, background-color 300ms;
}

textarea {
  margin-right: 5px;
}
textarea:active, textarea:focus {
  box-shadow: 0 0 10px #6699ff;
}
textarea:active + pre:not(.error), textarea:focus + pre:not(.error) {
  color: #6699ff;
}

pre {
  width: 525px;
}

#github {
  position: fixed;
  color: white;
  top: 20px;
  left: 20px;
  width: 75px;
  height: 75px;
  border-radius: 3px;
  background-image: url("/github-150.png");
  background-size: 50px;
  background-position: center center;
  background-repeat: no-repeat;
  background-color: white;
  font-size: 0.75em;
  text-align: center;
  overflow: hidden;
  text-indent: -500px;
  -webkit-transition: background-color 300ms;
}
#github:hover {
  background-color: #6699ff;
}

#contents {
  float: left;
  background: white;
  display: block;
}