body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  background: #fafafa;
  color: #222;
  margin: 0;
  padding: 0 1rem;
}
main {
  max-width: 800px;
  margin: 2rem auto;
}
a {
  color: #0d6efd;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
footer {
  text-align: center;
  margin: 4rem 0 2rem;
  color: #666;
  font-size: 0.9rem;
}
.fails-list {
  list-style: none;
  padding: 0;
}
.fails-list li {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #e0e0e0;
}
.fail blockquote {
  background: #fffbe6;
  border-left: 4px solid #ffe58f;
  margin: 1rem 0;
  padding: 1rem;
}