.container {
  max-width: 800px;
  margin: 0 auto;
  margin-top: 70px;
  padding: 0 20px;
}

a {
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

iframe {
  margin-bottom: 10px;
  margin-top: 10px;
}

summary {
  cursor: pointer;
}