html, body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #333;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px;
}

article {
  margin-bottom: 40px;
}

h2 {
  font-size: 2em;
  margin-bottom: 20px;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}