. 代碼如下:
以下為程序代碼：<!DOCTYPE html/>
<head>
<script type="text/javascript" src="http://www.w3school.com.cn/jquery/jquery.js"></script>
<script type="text/javascript">
$(function() {
$(".v").mouseover(function() {
var x = $("<div class='vs'></div>");
x.appendTo($('body'));
x.css({
width : $(this).width() - 6,
height : $(this).height() - 6,
left : $(this).offset().left,
top : $(this).offset().top
});
$($.browser.msie ? this : x).mouseout(function(){
x.remove();
});
});
});
</script>
<style>
.vs {z-index:1000;position:absolute;border:3px solid red;}
</style>
</head>
<body>
<a href="#"><img src="http://img2.bdstatic.com/img/image/774730e0cf3d7ca7bcb7a7b223ebc096b63f624a89b.jpg" border="0" class="v" /></a>
<a href="#"><img src="http://img2.bdstatic.com/img/image/774730e0cf3d7ca7bcb7a7b223ebc096b63f624a89b.jpg" border="0" /></a>
<a href="#"><img src="http://img2.bdstatic.com/img/image/774730e0cf3d7ca7bcb7a7b223ebc096b63f624a89b.jpg" border="0" class="v" /></a>
</body>
</html>
點擊查看演示：http://biyuan.tk/u/upload/201311131123292656.html