anchor.diff:  
   .s-why
     :marked
  -    **Why?** Helps reduce the app from becoming cluttered through organizing the content and keeping them aligned with the LIFT guidelines.
  -
  -.s-why
  -  :marked
  -    **Why?** When there are a lot of files (e.g. 10+), locating them is easier with a consistent folder structure and more difficult in a flat structure.
  +    **Why?** Helps reduce the app from becoming cluttered through organizing the 
  +    content and keeping them aligned with the LIFT guidelines.
  +
  +.s-why
  +  :marked
  +    **Why?** When there are a lot of files, for example 10+, 
  +    locating them is easier with a consistent folder structure 
  +    and more difficult in a flat structure.
   
   .s-rule.do
     :marked
  
positive.code: 
  .s-rule.do
    :marked
      **Do** create an Angular module in the app's root folder (e.g., in `/src/app`).
  
  .s-why
    :marked
  
negative.code: .s-why.s-why-last
    :marked
      **Why?** The property associated with `@HostBinding` or the method associated with `@HostListener` 
      can be modified only in a single place&mdash;in the directive's class. 
      If you use the `host` metadata property, you must modify both the property declaration inside the controller, 
      and the metadata associated with the directive.
  
  