body {
  font-size: 1.3em;
  font-family: serif;
}
h1 {
  font-size: 2em;
  font-family: Helvetica, Arial, sans-serif;
}
p {
  width: 35em;
  line-height: 1.2em;
}
aside {
  font-size: 0.5em;
}
footer {
  font-size: 0.8em;
}
ul {
  list-style-type: none;
}
li {
  margin: 0.3em 0;
}