.border {
  display: inline-block;
  padding: 15px;
  border: 2px solid red;
  border-radius: 10px; }

.border:hover {
  box-shadow: 7px 7px 6px #888888; }

.ref, .ref a {
  font-size: 85%;
  color: gray;
  line-height: 1.3em;
  font-style: italic; }

.ref a:hover {
  color: red; }

.ref:before {
  content: "["; }

.ref:after {
  content: "]"; }

.code {
  margin: 0.5em;
  padding: 0.25em;
  padding-left: 2em;
  background-color: #f7f7f7;
  border-radius: 10px; }

.illustration {
  text-align: center;
  margin: 2em; }

/*# sourceMappingURL=classes.css.map */