anchor.diff:  } 
       </style>
   </head>
  -<body>
  +<body style="background-color:#cccccc">
  +
   
   <div class="container">
       <div class="demo-headline">
           <div class="row demo-row">
               <div class="col-md-3">
  -                <a href="#fakelink" class="btn btn-block btn-lg btn-primary">浏览资讯</a>
  +                <a href="#fakelink" class="btn btn-block btn-lg btn-danger">热点</a>
               </div>
               <div class="col-md-3">
  -                <a href="#fakelink" class="btn btn-block btn-lg btn-warning">图片区</a>
  +                <a href="#fakelink" class="btn btn-block btn-lg btn-warning">氧吧</a>
               </div>
               <div class="col-md-3">
  -                <a href="#fakelink" class="btn btn-block btn-lg btn-default">论坛</a>
  +                <a href="#fakelink" class="btn btn-block btn-lg btn-primary">探索</a>
               </div>
               <div class="col-md-3">
  -                <a href="#fakelink" class="btn btn-block btn-lg btn-danger">视频</a>
  +                <a href="#fakelink" class="btn btn-block btn-lg btn-danger">FM</a>
               </div>
           </div> <!-- /row -->
   
  
positive.code:             <div class="login-screen">
                  <div class="login-icon">
                      <img src="/images/login/icon.png" alt="Welcome to Mail App" />
                      <h4>Welcome to <small>ShiLuoRen</small></h4>
                  </div>
  
                  <div class="login-form">
  
negative.code:             </div>
          </div>
      </div>
  </body>
  </html>