anchor.diff:  
               section
                   h2 Get yourself a compiler!
  -                h3 It's faster that way
  +                h3 You'll get new features quicker
               
               section
  -                h1 If it's good it should:
  +                h1 A good compiler should:
                   h2 Preserve JS awsomeness
                   h2 Fix JS design flaws
                   h2 Be "cheap" to use
  
positive.code:                 h3 Rise your hand, please!
  
              section
                  code.language-javascript
                      pre.
                          Array.prototype.slice.call(arguments, 0);
  
              section
                  h1 JavaScript is GREAT
                  h2 Runs on browser 
                  h2 AMAZING features
                  h2 Ugly!
  
              section
                  h2 How we can make JS better?
  
negative.code:                                 alert @name + " moved \#{meters}m."
  
                          new Animal('dog').move 3
  
              section
                  h2 Don't be scared
  
              section
                  h2 Non-JS confusion
  