<!DOCTYPE html>
<html lang="zh-cn">
<head>
  <meta charset="utf-8"/>
  <meta name="viewport" content="width=device-width, initial-scale=1"/>
  <title><?=$title?></title>
  <meta name="keywords" content="<?php echo $keywords?>"/>
  <meta name="description" content="<?php echo $description?>"/>
  <link href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet"/>
  <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>
  <!--[if lt IE 9]>
    <script src="http://libs.useso.com/js/html5shiv/3.7/html5shiv.min.js"></script>
    <script src="http://libs.useso.com/js/respond.js/1.4.2/respond.min.js"></script>
  <![endif]-->
</head>
<body>