body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #80F1C3;
background: linear-gradient(0deg, rgba(128, 241, 195, 1) 0%, rgba(242, 238, 141, 1) 100%);
  color: #333;
  background-repeat: repeat;
}

header {
  background: #222;
  color: white;
  padding: 1rem;
  text-align: center;
}

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

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

main {
  max-width: 900px;
  margin: auto;
  padding: 2rem;
  background: white;
}

footer {
  background: #222;
  color: white;
  text-align: center;
  padding: 1rem;
}