* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: Arial, sans-serif;
  background-color: #fff;
  color: #333;
}
header {
  background-color: #b30000;
  color: #fff;
  padding: 20px;
  text-align: center;
}
header h1 {
  margin-bottom: 10px;
}
nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
}
nav ul li {
  margin: 0 15px;
}
nav ul li a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}
nav ul li a:hover {
  text-decoration: underline;
}
main {
  padding: 20px;
}
section {
  margin-bottom: 40px;
}
footer {
  background-color: #222;
  color: #fff;
  text-align: center;
  padding: 10px;
  margin-top: 20px;
}