body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f5f5f5;
}

header {
  background-color: #2ECC71;
  color: white;
  padding: 20px;
  text-align: center;
}

h1 {
  font-size: 2em;
  margin-bottom: 0.5em;
}

p {
  font-size: 1em;
  margin-top: 0;
}

nav {
  background-color: #fff;
  padding: 10px;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  text-align: center;
}

nav li {
  display: inline-block;
  margin: 10px;
}

nav a {
  color: #2ECC71;
  text-decoration: none;
  font-weight: bold;
}

nav a:hover {
  color: #17793C;
}

main {
  padding: 20px;
}

section {
  margin-bottom: 20px;
}

h2 {
  font-size: 1.5em;
  margin-bottom: 1em;
}

section p {
  font-size: 1em;
}

footer {
  background-color: #2ECC71;
  color: white;
  padding: 10px;
  text-align: center;
}

.gallery img {
  width: 200px;
  height: 150px;
  margin: 5px;
}