body {
  font-family: "Helvetica", "Arial", sans-serif;
  line-height: 1.5;
  padding: 4em 1em;
  color: #333;
}

h2 {
  margin-top: 1em;
  padding-top: 1em;
}

h1,
h2,
strong {
  color: #222;
}

li {
 margin-top: 1em
}

#content {
    padding: 15px 30px 0 0;
}
#main-content {
    margin-left: 20%;
    max-width: 40em;
}

#sidebar {
    width: 20%;
    float: left;
    padding: 0 0 0 15px;
    position: fixed;
}
#sidebar ul {
    list-style: inside;
}

.separator {
  height: 100%;
  width: 1px;
  background: #999;
  top: 0;
  bottom: 0;
  position: absolute;
  left: 17%;
}