* { box-sizing: border-box; }
body {
  background-color: #eFF0F1;
  font-family: sans-serif;
  color: #444;
  margin: 3em;
}
a {
  color: #2382c8;
  text-decoration: none;
}
a:hover { 
  color: #000;
  text-decoration: underline;
}
a:visited { color: #a0a; }
code{
  padding: 0 4px;
  font-family: "Source Code Pro", "Courier New", Courier, sans-serif;
  font-size: 0.9em;
  color: #556270;
  background: #F7E2E2;
  border-radius: 3px;
}
table {
  border-collapse: collapse;
  margin: 1em auto;
}
th, td {
  border: 1px solid #ccc;
  padding: 0.5em 0.7em;
}
iframe {
  width: 100%;
  border: none;
}
aside {
  width: 500px;
  border-right: 1px solid #ccc;
  padding: 1em;
}
aside>a {
  display: block;
  padding: 0.5em;
}
aside>ul {
  font-size: smaller;
}