anchor.diff:        :marked
           [Web Animations](#web-animations)
           
  -        [Web动画](#web-animations)
  +        [Web Animations](#web-animations)
           
       td 
         p All but Chrome and Firefox<br>Not supported in IE9
  
positive.code:       p 
          a(href="https://github.com/web-animations/web-animations-js" target="_blank") Web Animations
        p 
          a#web-animations(href="https://github.com/web-animations/web-animations-js" target="_blank") Web动画
      td Apache
      td 14.8KB
    tr
  
negative.code:   Targeting such a wide range of browsers is challenging because they do not support all features of modern browsers.
    
    Angular构建于Web平台的最新标准之上。
    要支持这么多浏览器是一个不小的挑战，因为它们不支持现代浏览器的所有特性。
    
    You compensate by loading polyfill scripts ("polyfills") on the host web page (`index.html`)
    that implement missing features in JavaScript.
  