<link rel="stylesheet" href="https://apps.bdimg.com/libs/jquerymobile/1.4.2/jquery.mobile.min.css">
<script src="https://apps.bdimg.com/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="https://apps.bdimg.com/libs/jquerymobile/1.4.2/jquery.mobile.min.js"></script>
<div data-role="content">
<form method="post" action="demoform.asp">
<label for="fname" class="ui-hidden-accessible">姓名</label>
<input type="text" name="fname" id="fname" placeholder="姓名...">
<input type="submit" data-inline="true" value="提交">