anchor.diff:  <link rel="stylesheet"
   	href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap-theme.min.css">
   </head>
  +<style type="text/css">
  +#connect-container {
  +	float: left;
  +	width: 400px
  +}
  +#connect-container div {
  +	padding: 5px;
  +}
  +#console-container {
  +	float: left;
  +	margin-left: 15px;
  +	width: 400px;
  +}
  +#console {
  +	border: 1px solid #CCCCCC;
  +	border-right-color: #999999;
  +	border-bottom-color: #999999;
  +	height: 170px;
  +	overflow-y: scroll;
  +	padding: 5px;
  +	width: 100%;
  +}
  +#console p {
  +	padding: 0;
  +	margin: 0;
  +}
  +</style>
   <body>
   
   	<div class="container-fluid">
  
positive.code: 
  	<script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script>
  	<script src="//cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
  </body>
  </html>
negative.code: 		<div class="row">
  			<div class="col-md-4"></div>
  			<div class="col-md-4 text-center">
  				<div id="connect-container">
  					<div>
  						<button id="connect" onclick="connect();">Connect</button>
  						<button id="disconnect" disabled="disabled" onclick="disconnect();">Disconnect</button>
  					</div>
  					<div>
  						<textarea id="message" style="width: 350px">Welcome to you!</textarea>
  					</div>
  					<div>
  						<button id="echo" onclick="echo();" disabled="disabled">Send</button>
  					</div>
  				</div>
  				<div id="console-container">
  					<div id="console"></div>
  				</div>
  			</div>
  			<div class="col-md-4"></div>
  		</div>
  