anchor.diff:      h4 Loops and Conditionals
       p You can use if statements to decide what to display depending on various factors - maybe a user is logged in or not, or some content exists or not, or a combination of factors.
   
  -    p Jade's if statements are almost exactly like those present in javascript, except the parentheses are optional, and you don't need braces!
  +    p Jade's if statements are almost exactly like those present in JavaScript, except the parentheses are optional, and you don't need braces!
   
       .row
         .col
  
positive.code:     p Jade can be used just as a short hand for HTML.  This section covers everything you need to know to do that.
      h4 Creating Simple Tags
      p.
        Jade is whitespace sensitive, so there's no need to close your tags, jade does that for you.  You can also nest tags within other tags just by indenting them.
      .row(data-control='interactive')
        .col
          pre(data-control='input-jade')
  
negative.code:     p Jade is much more than just a short hand for HTML.  It also has features that let you build dynamic templates.
  
      h4 Outputing Text
      p You can output raw text from JavaScript variables.  Jade will also helpfully filter the text for you so it's safe from nasty HTML injection attacks.
  
      div
        pre
  