부트스트랩(bootstrap) 기본 헤더 선언하기

<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="/lib/bs/css/bootstrap.min.css" rel="stylesheet" media="screen">
<script src="/js/jquery-1.11.1.js"></script> // 기본적으로 jquery 포함해야 함
<script src="/lib/bs/js/bootstrap.min.js"></script>
<script src="/lib/bs/js/respond.js"></script>