prism.css

pre {
  background: #2a2929;
  color: #f6f5f5;
  line-height: 24px;
}
pre[data-line] {
  position: relative;
}
.token.comment,
.token.block-comment,
.token.prolog,
.token.doctype,
.token.cdata {
  color: #7a7373;
}
.token.punctuation,
.token.anchor {
  color: #9b9b9b;
}
.token.tag,
.token.attr-name,
.token.namespace,
.token.deleted {
  color: #ed4b35;
}
.token.function-name {
  color: #4a90e2;
}
.token.boolean,
.token.number,
.token.function {
  color: #f5a623;
}
.token.property,
.token.class-name,
.token.constant,
.token.symbol {
  color: #f5a623;
}
.token.selector,
.token.important,
.token.atrule,
.token.keyword,
.token.builtin {
  color: #4a90e2;
}
.token.string,
.token.char,
.token.attr-value,
.token.regex,
.token.variable {
  color: #11c560;
}
.token.operator,
.token.entity,
.token.url {
  color: #2d76cc;
}
.token.important,
.token.bold {
  font-weight: bold;
}
.token.italic {
  font-style: italic;
}
.token.entity {
  cursor: help;
}
.token.inserted {
  color: #11c560;
}
.line-highlight {
  background: rgba(255, 255, 255, 0.1);
  position: absolute;
  left: 0;
  right: 0;
  margin-top: 0.5rem;
  /* same as pre padding */
  pointer-events: none;
  line-height: inherit;
  white-space: pre;
}
.line-highlight:before,
.line-highlight[data-end]:after {
  content: attr(data-start);
  position: absolute;
  top: 0;
  right: 0;
  background-color: #1e1d1d;
  color: #efeeee;
  text-align: center;
  width: 2em;
}
.line-highlight[data-end]:after {
  content: attr(data-end);
  top: auto;
  bottom: 0;
}
.line-numbers .line-highlight:before,
.line-numbers .line-highlight:after {
  content: none;
}