body {
  font-family: Arial, sans-serif;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  line-height: 1.6;
}

header {
  text-align: center;
  margin-bottom: 40px;
}

img {
  border-radius: 10px;
}

footer {
  margin-top: 50px;
  text-align: center;
  color: #666;
}

.banner {
  width: 100%;
  max-width: 800px;
  height: auto;
  border-radius: 15px;
  margin: 20px 0;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.banner:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}