anchor.diff:              <div class="head-logo-box">
                 <a class="navbar-brand" href="/">
                   <img alt="韩非子说" src="/little-logo.png" class="logo" />
  -                <span class="beta">Beta</span>
  +                <span class="beta">Alpha</span>
                 </a>
               </div>
             </div>
  
positive.code: <!DOCTYPE html>
  <html lang="zh-CN">
    <head>
      <meta charset="utf-8">
      <meta http-equiv="X-UA-Compatible" content="IE=edge">
      <meta name="viewport" content="width=device-width, initial-scale=1">
      <meta name="keywords"
            content="<%= @page_keywords_list %>法律 法务 问答 社区" />
      <meta name="description"
            content="<%= @page_description %>法律 法务 问答 社区" />
      <title>
        <% if @title %><%= @title %> | 韩非子说<% else %>韩非子说"<% end %>
      </title>
      <link rel="icon" href="/favicon.ico">
      <link rel="shortcut icon" href="/favicon.ico"/>
      <link rel="bookmark" href="/favicon.ico"/>
      <link href="/css/bootstrap-with-theme.min.css" rel="stylesheet">
      <link href="/css/my.css" rel="stylesheet">
      <%= yield_content :extra_css_tags %>
      <!--[if lt IE 9]>
        <script src="/js/html5shiv.min.js"></script>
  
negative.code:               <input type="button" value="登录" class="btn btn-primary"
                        onclick="javascript:login();" />
                &nbsp;没有帐户？<a href="/user/register">注册</a>
              </div>
            </div>
          </div>
        </div> <!-- /.modal -->
  
        <!-- breadcumb -->
  