anchor.diff:          small(style='position: absolute; bottom: 10px; text-align: center; right: 0; left: 0;')
             | (See <a href='https://github.com/Microsoft/TypeScript/wiki/Roadmap'>
             | github.com/Microsoft/TypeScript/wiki/Roadmap</a> for full details)
  +        aside
  +          5 minutes from start of ES2015 to here
  +
         section
           h2 Downsides
           ul.bullet
  +          li 
             li Compile step
             li Occasional type wrangling
             li Could be more ambitious
  
positive.code:       section
          h2 Other options
          ul.bullet
            li Closure compiler
            li Flow
            li Babel
  
negative.code:                 });
                }
              }, { enableHighAccuracy: "never" });
          aside
            8 minutes to get here and run through markups, at fairly high speed
  
        section
          h1 ES2015 <small>(ES6)</small>
  