在线运行代码 - 代码学院 www.codexy.cn

<!DOCTYPE html> 
<html lang="en"> 
<head> 
	<meta charset="utf-8"> 
	<title>Bootstrap 版本 2.0 默认表单布局实例</title> 
	<meta name="description" content="Bootstrap Version2.0 default form layout example from w3cschool.cc."> 
	<link href="/try/bootstrap/twitter-bootstrap-v2/docs/assets/css/bootstrap.css" rel="stylesheet">
</head>
<body>
<form class="well">
	<label>标签名称</label>
	<input type="text" class="span3" placeholder="Type something…">
	<span class="help-inline">相关帮助文档 ！</span>
	<label class="checkbox">
		<input type="checkbox"> 选中我
	</label>
	<button type="submit" class="btn">提交</button>
</form>
</body>
</html>
源代码

动行结果
