anchor.diff:              <li><a href="/about">关于</a></li>
             </ul>
             <ul class="nav navbar-nav navbar-right">
  -            <li><a id="play_btn" href="/#play">打开动画</a></li>
  +            <li><a id="play_btn" href="#">显示动画（测试版）</a></li>
             </ul>
           </div><!--/.nav-collapse -->
         </div>
  
positive.code:   	  	<%= yield %>
    	  </div>
  
        <footer class="col-xs-12 col-md-12 col-lg-12 small">
          <p id="copyright" class="copyright_animate">&copy; Chuyik 2014</p>
        </footer>
      </div> <!-- /container -->
  
  
negative.code:   </head>
  
    <body>
      <div id="background" class="stop-animate bg_animate"></div>
  
      <div id="logo" class="logo_animate stop-animate">G3 团队日志</div>
      <a id="gotop" class="goto"> <span>▲</span></a>
      <a id="gobottom" class="goto"> <span>▼</span></a>
  