body {
  font-family: sans-serif;
  margin: 0;
  padding: 2rem;
}

main {
  max-width: 700px;
  margin: 0 auto;
}

p {
  margin: 1rem 0;
}

button,
a {
  font-size: 1rem;
}

button {
  padding: 0.5rem 1rem;
}