body {
  max-width: 800px;
  font-family: system-ui, sans-serif;
  font-size: 1.2em;
  background-color: #f4f4f4;
  color: #333;
  margin: 0 auto;
  padding: 20px;
}
h1 {
  color: #2c3e50;
}
p {
  line-height: 1.6;
}
a {
  color: #3498db;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
li {
  margin: 15px 0;
}
code {
  background-color: lightgrey;
  padding: 0.1em 0.2em;
}