<!DOCTYPE html>
<html lang="zh-Hans-CN">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<title>test</title>
<style>
body
{
font-size:16px;
}
select,input
{
font-size:1em;
}
#page
{
width:600px;
margin:0 auto;
}
</style>
</head>
<body>
<div id="page">
汉字
<form>
<select>
<option>汉字</option>
<option>English</option>
</select>
<input type="text" value="汉字" />
<input type="submit" value="汉字" />
</form>
<div id="footer">
<form id="change_ui" method="get" action="#">
页面宽度：<input type="text" id="page_width" name="page_width" value="960px" />
字号大小：<input type="text" id="font_size" name="font_size" value="20px" />
<input type="submit" value="OK" />
</form>
</div>
<script type="text/javascript">
document.getElementById('change_ui').onsubmit = function()
{
document.getElementById('page').style.width=this.page_width.value;
document.body.style.fontSize=this.font_size.value;
return false;
}
</script>
<div>
</body>
</html>
所以写CSS要写上：
select,input
{
font-size:1em;
}
Firefox、IE 8的整体放大都能够放大select、input，为什么偏偏不能继承？真奇怪。