body {
  font-family: Verdana, sans-serif;
  background-color: #f0fff0;
  margin: 0;
  padding: 0;
}
header {
  background-color: #4CAF50;
  color: white;
  padding: 20px;
  text-align: center;
}
nav {
  background-color: #388E3C;
  color: white;
  text-align: center;
  padding: 10px 0;
}
nav a {
  color: white;
  text-decoration: none;
  margin: 0 15px;
  font-weight: bold;
}
main {
  padding: 20px;
}
section {
  margin-bottom: 30px;
}
.gallery img {
  width: 200px;
  margin: 10px;
  border: 1px solid #ccc;
}
footer {
  background-color: #4CAF50;
  color: white;
  text-align: center;
  padding: 15px;
  font-size: 14px;
}