<style>
.main-nav {
  background-color: #a00000;
  padding: 10px 0;
  text-align: center;
}

.main-nav .nav-line {
  display: flex;
  justify-content: center;
  gap: 2px;
  margin: 4px 0;
  flex-wrap: wrap;
}

.main-nav a {
  color: gold;
  text-decoration: none;
  font-weight: bold;
  font-size: 15px;
  padding: 6px 12px;
  border-radius: 6px;
  transition: background 0.3s;
}

.main-nav a:hover {
  background-color: rgba(255,255,255,0.2);
}
</style>
body {
  font-family: Arial, sans-serif;
  margin: 0;
  background-color: #fff5e6;
}

nav {
  background-color: #a00000;
  padding: 15px;
  text-align: center;
}

nav a {
  color: gold;
  margin: 0 1px;
  text-decoration: none;
  font-weight: bold;
}

nav a:hover {
  text-decoration: underline;
}

section {
  padding: 40px;
}

