.pull-quote {
  margin: 1em;
  padding: 1em;
  border-top: 1px solid rgba(0, 0, 0, .1);
  border-bottom: 1px solid rgba(0, 0, 0, .1);
}

@media screen and (min-width: 600px) {
  .pull-quote {
    margin: 2em 3em;
  }
}