anchor.diff:  
     * [Quickstart Example: Transitioning Between Two States](#example-transitioning-between-states)
   
  -  * [快速起步范例：在两个状态之间过渡(Transition)](#example-transitioning-between-states)
  +  * [快速起步范例：在两个状态之间进行转场(Transition)](#example-transitioning-between-states)
     
     * [States and Transitions](#states-and-transitions)
   
  -  * [状态与过渡](#states-and-transitions)
  +  * [状态与转场](#states-and-transitions)
   
     * [Example: Entering and Leaving](#example-entering-and-leaving)
   
  
positive.code: :marked
    ## Quickstart Example: Transitioning Between Two States
  
    ## 快速起步范例：在两个状态间过渡
  
  figure
    img(src="/resources/images/devguide/animations/animation_basic_click.gif" alt="A simple transition animation" align="right" style="width:220px;margin-left:20px" )
  
negative.code:   metadata. It has animated transitions between two states: `active` and `inactive`. When a
    hero is active, we display a the element in slightly larger size and lighter color.
  
    通过这些，我们现在可以在组件元数据中定义一个名叫`heroState`的*动画触发器*。它在两个状态`active`和`inactive`之间进行转场。
    当英雄处于激活状态时，它会把该元素显示得稍微大一点、亮一点。
  
  +makeExample('animations/ts/app/hero-list-basic.component.ts', 'animationdef')(format=".")
  
  