body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

header {
  background-color: #333;
  color: #fff;
  padding: 20px;
  text-align: center;
}

h1 {
  font-size: 2em;
  margin: 0;
}

main {
  padding: 20px;
}

p {
  font-size: 1em;
  line-height: 1.5em;
}

footer {
  background-color: #333;
  color: #fff;
  padding: 20px;
  text-align: center;
}