<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>jQuery JPlaceholder Demo</title>
<script src="jquery-1.8.2.min.js"></script>
<script src="jquery.JPlaceholder.js"></script>
</head>
<body>
<form>
<div>
<ul>
<li>
<input type="text" name="username" placeholder="用户名">
</li>
<li>
<input type="password" name="username" placeholder="密码">
</li>
<li>
<button type="button">登录</button>
</li>
</ul>
</div>
</form>
</body>
</html>
<html>
<head>
<meta charset="utf-8">
<title>jQuery JPlaceholder Demo</title>
<script src="jquery-1.8.2.min.js"></script>
<script src="jquery.JPlaceholder.js"></script>
</head>
<body>
<form>
<div>
<ul>
<li>
<input type="text" name="username" placeholder="用户名">
</li>
<li>
<input type="password" name="username" placeholder="密码">
</li>
<li>
<button type="button">登录</button>
</li>
</ul>
</div>
</form>
</body>
</html>