Bootstrap标签类的用法
Bootstrap标签类用于添加标签，例如提示，计数等。
让我们看一个实现标签类的例子
示例
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap Example</title>
<link href = "/bootstrap/css/bootstrap.min.css" rel = "stylesheet">
<script src = "/scripts/jquery.min.js"></script>
<script src = "/bootstrap/js/bootstrap.min.js"></script>
</head>
<body>
<h1>Tools
<span class = "label label-default">
40
</span>
</h1>
<h2>QA
<span class = "label label-default">
1000
</span>
</h2>
</body>
</html>