最近在做项目时，看到163邮箱中的按钮效果不错，鼠标移上去按钮会改变样式，而且比较清爽，所以拿来借用，这里做个备忘先。
仿163邮箱按钮鼠标移上变色的效果图如下所示：
仿163邮箱按钮鼠标移上变色的源代码如下所示：
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>仿163邮箱按钮鼠标移上变色的效果－HTMer</title>
<style>
.htmer_btn01{width:60px; height:24px; border:1px solid #87a3c1; background:url(htmer_btn.gif); color:#555; font-size:12px; line-height:180%; cursor:pointer;}
.htmer_btn02{width:60px; height:24px; border:1px solid #a2904d; background:url(htmer_btn.gif)0-66px; color:#630; font-size:12px; cursor:pointer; line-height:180%;}
</style>
</head>
<body>
<div><input type="button" class="btn01" onmouseover="this.className='htmer_btn02'" onmouseout="this.className='htmer_btn01'" value="HTMer.Com" />
</div></body>
</html>