Expressjs Highlight style

Highlight.css

/* code */

p code {
  background: #efefef;
  border: 1px solid #eaeaea;
  font-family: monaco, monospace;
  font-size: .75em;
  padding: 2px 8px;
  -webkit-border-radius: 3px;
}

pre {
  color: #353535;
  font-size: 14px;
  line-height: 1.4;
  margin: 20px 0;
  padding: 20px;
  background: white;
  border: 1px solid #e7e7e7;
  border-bottom: 1px solid #ddd;
  -webkit-box-shadow: 0 1px 3px 0 #eee;
  -webkit-border-radius: 3px;
}

pre code {
  font-family: monaco, monospace;
  font-size: .8em;
}

code .comment { color: #888 }
code .init { color: #2F6FAD }
code .string { color: #5890AD }
code .keyword { color: #8A6343 }
code .number { color: #2F6FAD }

Highlight.js

/**
 * Highlight the given `js`.
 */

function highlight(js) {
  return js
    .replace(/</g, '&lt;')
    .replace(/>/g, '&gt;')
    .replace(/\/\/(.*)/gm, '<span class="comment">//$1</span>')
    .replace(/('.*?')/gm, '<span class="string">$1</span>')
    .replace(/(\d+\.\d+)/gm, '<span class="number">$1</span>')
    .replace(/(\d+)/gm, '<span class="number">$1</span>')
    .replace(/\bnew *(\w+)/gm, '<span class="keyword">new</span> <span class="init">$1</span>')
    .replace(/\b(function|new|throw|return|var|if|else)\b/gm, '<span class="keyword">$1</span>')
}