Syntax highlighting with highlight.js

class Foobar
  def baz
    puts "Hello, world!"
  end
end

<article>
  <h4>A really awesome article</h4>
  <p>Lots of awesome text.</p>
</article>

var foobar = function() {
  alert('Hello, world');
}();

pre {
  background-color: #333;
  padding: 5px;
  color: #ccc;
  border-radius: 3px;
}