body {
  font-family: Arial, sans-serif;
  background-color: #fff;
  color: #222;
  margin: 0;
}

header {
  background-color: #1e5b8c;
  color: white;
  padding: 1rem;
  text-align: center;
  font-size: 1.6rem;
  font-weight: bold;
}

main {
  max-width: 900px;
  margin: auto;
  padding-top: 2rem;
}

h2 {
  color: #222;
  font-size: 1.3rem;
}

h3 {
  font-size: 1.1rem;
  margin-top: 1.5rem;
}

ul {
  padding-left: 2rem;
}

li {
  margin: 0.5rem 0;
}

img {
  height: 100px;
  border: 1px solid #aaa;
  border-radius: 4px;
}