编辑下面的代码:【加编码】
<html lang="en"> <head> <meta charset="utf-8"> <title>Bootstrap Version2.0 default form layout example</title> <meta name="description" content="Bootstrap Version2.0 default form layout example from ziqiangxuetang.com."> <link href="/try/bootstrap/twitter-bootstrap-v2/docs/assets/css/bootstrap.css" rel="stylesheet"> </head> <body> <form class="well"> <label>Label name</label> <input type="text" class="span3" placeholder="Type something…"> <span class="help-inline">Associated help text!</span> <label class="checkbox"> <input type="checkbox"> Check me out </label> <button type="submit" class="btn">Submit</button> </form> </body> </html>
结果: 【此窗口】 帮助?
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