anchor.diff:                  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
  +                h1 Ugly!
   
               section
                   h2 How we can make JS better?
  
positive.code: 
              section
                  h2 Get yourself a compiler!
                  h3 It's faster that way
              
              section
                  h1 If it's good it should:
                  h2 Preserve JS awsomeness
                  h2 Fix JS design flaws
                  h2 Be "cheap" to use
  
negative.code:                         console.log(a) for a in [1, 2, 3, 4]
  
              section
                  h2 Expressions make THE difference
                  h3 Make your code shorter and shorter is better
  
              section
                  h2 CoffeeScript has flaws...
                  h3 but it's still way better than JS!
  
              section
                  h2 &#10003; Preserve JS awsomeness
  