BootStrap bootstrap模板
毋修为
demo.html：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="dist/css/bootstrap.min.css"> <!-- bootstrap的核心css -->
<link rel="stylesheet" href="dist/css/bootstrap-theme.min.css"> <!-- bootstrap主题css(可不引) -->
<!--条件注释,只有小于等于ie8的浏览器才识别下边的引入-->
<!--[if lte ie 8]>
<script src="http://cdn.bootcss.com/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="http://cdn.bootcss.com/respond.js/1.4.2/respond.min.js"></script>
<![endif]-->
<script src="jquery.min.js"></script>
<script src="dist/js/bootstrap.min.js"></script> <!-- bootstrap的核心JS 要先引入JQuery -->
</head>
<body>
<button type="button" class="btn btn-danger btn-sm active">危险/小尺寸/激活</button>
</body>
</html>
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