.code-line {
  display: block;
  padding: 0 1.575rem;
  color: transparent;
}

.code-line.highlighted {
  background-color: #ccc;
}

.pre-wrapper {
  line-height: 1.7;
  position: relative;
}

.pre-wrapper:before {
  content: attr(data-lang);
  position: absolute;
  top: 5px;
  right: 10px;
  font-size: 13px;
  opacity: .5;
}

.code-mask {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 1.575rem 0;
}

pre {
  padding: 1.575rem;
  position: relative;
  z-index: 1;
  background: transparent;
  overflow: auto;
}

pre, .code-mask {
  font-family: source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace;
  font-size: 14px;
  line-height: 1.7;

  /* soft wrap */
  /* white-space: pre-wrap;
  word-break: break-word; */
}

code {
  font-size: 14px;
  font-family: source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace;
}