.img-xs {
  width: 40%;
  max-width: 100%;
  height: auto;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.img-small {
  width: 80%;
  max-width: 100%;
  height: auto;
}

.img-large {
  width: 100%;
  max-width: 100%;
  height: auto;
}

.space-before-sm {
  margin-top: 1rem;
}

.space-before-md {
  margin-top: 2rem;
}

.space-before-lg {
  margin-top: 3rem;
}

.img-caption {
  text-align: center;
  margin-top: 0.4rem;
  font-size: 0.9rem;
  color: #666;
}

.content td:nth-child(2),
.content th:nth-child(2) {
  white-space: nowrap;
  overflow-wrap: normal;
  word-break: normal;
}

.code-caption {
    text-align: center;
    font-style: italic;
    color: #777;
    margin-top: -0.5em;
    margin-bottom: 2em;
}