* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  font-size: 16px; /* base size */
  line-height: 1.6;
  background-color: #f5f5f5;
  color: #222;
}
body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f4f4f4;
  color: #333;
}

header {
  background: #0a66c2;
  color: white;
  padding: 15px;
  text-align: center;
}

nav a {
  color: white;
  margin: 0 10px;
  text-decoration: none;
  font-weight: bold;
}

main {
  padding: 20px;
  background: white;
  margin: 20px;
  border-radius: 6px;
}

footer {
  text-align: center;
  padding: 10px;
  background: #222;
  color: white;
}
@media (max-width: 768px) {
  h1 {
    font-size: 1.8rem;
  }

  p {
    font-size: 1rem;
  }
}