body {
  margin: 0;
  padding: 40px;
  background: #fff;
  font: 80% 'Roboto',Arial, Helvetica, sans-serif;
  color: #555;
  line-height: 180%;
  background-color:#222;
  color:#fff;
}

h1 {
  font-size: 180%;
  font-weight: 400;
  color: #555
}

h2 {
  clear: both;
  font-size: 160%;
  font-weight: 400;
  color: #555;
  margin: 0;
  padding: .5em 0
}

a {
  text-decoration: none;
  color: #f30
}

p {
  clear: both;
  margin: 0;
  padding: .5em 0
}

pre {
  display: block;
  font: 100% "Courier New", Courier, monospace;
  padding: 10px;
  border: 1px solid #bae2f0;
  background: #e3f4f9;
  margin: .5em 0;
  overflow: auto;
  width: 800px
}

img { border: none }

ul, li {
  margin: 0;
  padding: 0
}

li {
  list-style: none;
  float: left;
  display: inline;
  margin-right: 10px
}

#preview {
  position: absolute;
  border: 5px solid #fff;
  background: #333;
  padding: 5px;
  display: none;
  border-radius:5px;
  color: #fff
}