.logo-sub {
  font-size: 0.8rem;
}

/* Make an external arrow icon appear for external hyperlinks. */
a.external::after {
  content: " ↗";
}

a.back-link {
  font-size: 0.8rem;
}
a.back-link::before {
  content: "← ";
}

/* Smaller font for Plamo cards. */
@media (max-width: 500px) {
  .fs-xs-smaller {
    font-size: 0.75rem;
  }
}

footer {
  font-size: 0.7rem;
  text-align: center;
  padding: 15px 10px;
}

/* Japanese learning notes text colours. */
span.jc-1 {
  color: mediumvioletred;
}