<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>垂直居中测试</title>
<style type="text/css">
img, input, select, button{vertical-align:middle;}
</style>
</head>
<body>
<form name="test" method="POST">
<input type="text"name="insert" /> <img src="images/btn.gif">
</form>
</body>
</html>
