body {
  max-width: 40rem;
  margin: 4rem auto;
  padding: 0 1.5rem;
  font-family: Georgia, serif;
  line-height: 1.6;
  color: #222;
}

.post + .post {
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid #ddd;
}

.post-body p {
  margin: 0 0 1em;
}

.question {
  font-style: italic;
}

textarea {
  box-sizing: border-box;
  width: 100%;
  min-height: 5rem;
  margin-top: 0.75rem;
  font: inherit;
}

button {
  margin-top: 0.75rem;
  font: inherit;
  cursor: pointer;
}

.error {
  color: #b00020;
}