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

nav {
  background-color: yellow;
  padding: 10px 0;
}
nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  margin: 0;
  padding: 0;
}
nav li {
  margin: 0 15px;
}
nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}
nav a:hover {
  color: #e62429;
}

header, section {
  padding: 20px;
  max-width: 800px;
  margin: auto;
  text-align: center;
}

img {
  width: 100%;
  max-width: 400px;
  margin-top: 15px;
}
.rounded {
  border-radius: 8px;
  transition: transform 0.3s ease;
}
.rounded:hover {
  transform: scale(1.05);
}

footer {
  text-align: center;
  background-color: #202020;
  color: #fff;
  padding: 10px;
  margin-top: 30px;
}