html {
  font-family: 'Arial', serif;
  font-size: 12px;
  color: rgba(0,0,0,0.8);
  line-height: 1.65;
}
@media screen and (min-width: 58em) {
  html {
    font-size: 14px;
  }
}

body {
  font-family: inherit;
  font-size: 1rem;
  line-height: inherit;
  color: inherit;
  margin-top: 71px; /* Offset body content by navbar height. */
  padding-top: 0;
  counter-reset: captions;
}

p {
  text-align: justify;
}

img, video {
  height: auto;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  display: block;
}