.container {
  padding: 2em 0;
  max-width: 48em;
  font-family: Roboto;
}

code,
kbd,
pre {
  font-family: "Roboto Mono";
}

h1, h2, h3, h4, h5, h6 {
  font-weight: bold;
  letter-spacing: 0;
}

h1 { font-size: 2.0em; }
h2 { font-size: 1.5em; }
h3 { font-size: 1.25em; }
h4, h5, h6 { font-size: 1.0em; }

#toc-sidebar {
  position: relative;
  top: 0;
  left: 0;
  min-height: 100%;
  overflow-y: auto;
}

#toc-sidebar ul {
  list-style-type: none;
}

#markdown-toc li {
  margin-bottom: 0.5em;
}

#markdown-toc ul {
  margin: 0.5em 0 0.5em 1em;
}

#markdown-toc li a {
  color: #333;
  text-decoration: none;
  font-weight: bold;
}

#markdown-toc ul a {
  font-weight: normal;
}

#markdown-toc li a:hover {
  color: hsl(210, 75%, 50%);
}

@media (min-width: 550px) {
  .container {
    padding: 2em;
  }

  #toc-sidebar {
    position: fixed;
    width: 14em;
    border-right: 1px solid #E7E7E7;
    background-color: #F7F7F7;
    box-shadow: #CCC 0 0 1em;
  }

  #markdown-toc {
    position: absolute;
    padding: 1em;
    width: 12em;
    box-sizing: border-box;
  }
}

@media (max-width: 1155px) and (min-width: 550px) {
  .container {
    margin-left: 14em;
  }
}