body {
  background: #f4f4f4;
  color: #111;
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
}

header {
  background: #ffffff;
  padding: 20px;
  border-bottom: 1px solid #ccc;
}

nav {
  background: #222;
  padding: 10px;
}

nav a {
  color: #fff;
  text-decoration: none;
  margin-right: 15px;
  font-size: 14px;
}

nav a:hover {
  text-decoration: underline;
}

main {
  padding: 20px;
}

section {
  background: #ffffff;
  padding: 15px;
  margin-bottom: 20px;
  border: 1px solid #ccc;
}

.article {
  border-bottom: 1px dashed #aaa;
  padding: 10px 0;
}

.article h3 {
  margin: 0;
}

footer {
  background: #eaeaea;
  text-align: center;
  padding: 10px;
  font-size: 12px;
}