body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f2f2f2;
  margin: 0;
  padding: 0 20px;
}

header {
  background-color: #4CAF50;
  color: white;
  padding: 20px 10px;
  text-align: center;
  border-radius: 5px;
}

h2 {
  color: #333;
  margin-top: 30px;
}

img {
  max-width: 80px;
  height: auto;
  border: 2px solid #ddd;
  border-radius: 5px;
}

a {
  color: #4CAF50;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button {
  padding: 10px 20px;
  background-color: #2196F3;
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #0b7dda;
}