body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background-color: #f9f9f9;
  color: #333;
}

h1 {
  font-size: 2.5em;
  margin: 20px 0;
  text-align: center;
}

h2 {
  font-family: 'Georgia', serif;
  font-size: 2em;
  color: #4a148c;
  margin: 20px 0 10px;
}

h3 {
  font-family: 'Courier New', monospace;
  font-size: 1.5em;
  color: #7b1fa2;
  margin: 20px 0 10px;
}

header img {
  display: block;
  margin: 20px auto;
  width: 300px;
  border-radius: 8px;
}

section {
  padding: 20px;
  max-width: 800px;
  margin: 0 auto;
  background-color: #fff;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}