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                        /玩轉Bootstrap（基礎）

為什么我把代碼粘貼到本地（Dreamweaver）就顯示不出來

<!DOCTYPE?HTML>
<html>
<head>
<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8">
<title>按鈕組</title>
<link?rel="stylesheet"?>
<link?rel="stylesheet"?href="style.css">
</head>
<body>

<div?class="btn-group">
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-step-backward"></span></button>
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-fast-backward"></span></button>
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-backward"></span></button>
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-play"></span></button>
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-pause"></span></button>
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-stop"></span></button>
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-forward?"></span></button>
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-fast-forward"></span></button>
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-step-forward"></span></button>
</div>
<div?class="btn-group">
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-search"></span></button>
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-zoom-in"></span></button>
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-zoom-out"></span></button>
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-download"></span></button>
????<button?type="button"?class="btn?btn-default"><span?class="glyphicon?glyphicon-upload"></span></button>
</div>
??<script?src="http://img1.sycdn.imooc.com//down/53c6484f00013d9300000000.js"></script>
??<script?src="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>?
</body>
</html>