pre {
  background-color: #fff;
  border: 0;
  border-top: 1px solid black;
  border-bottom: 1px solid black;
  border-radius: 0;
  transition: background-color 1s; }
  pre.highlight {
    background-color: #ff8 !important; }
  pre span.line {
    position: relative;
    display: inline-block;
    width: 100%; }
    pre span.line.passed:before {
      content: "\2713";
      position: absolute;
      top: -3px;
      display: inline-block;
      left: -20px;
      color: #080;
      font-size: 125%; }
    pre span.line.failed:before {
      content: "\00D7";
      position: absolute;
      top: -3px;
      display: inline-block;
      left: -20px;
      color: #f00;
      font-size: 125%; }
