anchor.diff:              span Phype
   
         section
  -        h2 JavaScript is pretty fast now
  +        h2 JavaScript is pretty quick now
           br
           h4 Chrome's JS engine (V8) is approximately:
           br
  
positive.code:           li 10x faster than PHP
            li 6x faster than Ruby
            li The same as Clojure or Go
            li 1/2 the speed of Java
            li 1/4 the speed of C++
  
          small
  
negative.code:             label For-of
              pre
                code.language-javascript.
                  for (var x of [1, 2, 3]) { ... }
  
            li(class='codeAndLabel')
              label Generators
  