请教一个鼠标滑过的效果

想请教一下大家，一个鼠标滑过的效果该怎么写。效果就是当把鼠标放到一个图片上时下面可以显示出一个层。就是类似于网易相册的那样的效果。把鼠标放上去就会出现删除或者修改的连接。

解决方案 »

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你可以参考一下这个<!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=gb2312" />
<title>Untitled Document</title>
<style type="text/css">
    *{margin:0; padding:0;}
    body{font-size:12px; font-family:"Times New Roman", Times, serif; background-color:#333;}
#main{margin:100px auto; width:300px;}
#main ul{list-style:none;}
#main ul li{line-height:20px; border-bottom:1px dashed #FC0;}
#main ul li a{color:#E7E7E7; text-decoration:none; position:relative; display:block;}
#main ul li a div{display:none;}
#main ul li a:hover{ visibility:visible; color:#FFF;}
#main ul li a:hover div{position:absolute; left:280px; top:-40px; background-color:#FFF; display:block; width:300px; height:100px; color:#000; overflow:hidden;}
#main ul li a:hover div dt{float:left; width:8px; background:url(234.gif) center no-repeat;height:100px; display:block; background-color:#333;}
#main ul li a:hover div dd{float:right; width:270px; height:auto; line-height:18px; padding:6px 10px;}
</style>
</head>
<body>
<p>

</p>
<p>

</p>
<div id="main">
    <ul>
        <li><a href="javascript:void(0);">Customizing Form Objects and Validating Forms<div><dt></dt><dd>Rollovers are very easy using Dreamweaver. All you need to do is export two images from Fireworks (the image itself and the rollover image). Next, in Dreamweaver, click on Insert>Rollover Image. Give a name to the image, choose the images from the folder icon and finally give the link to the image. That's it! You've now got a great looking effect for your site.
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        <li>
            <a href="javascript:void(0);">Customizing Form Objects and Validating Forms
<div><dt></dt><dd>After resizing an image in Dreamweaver, click on Commands>Optimize Image in Fireworks. You will get a dialog box saying 'Editing image.gif. Do you wish to use an existing Fireworks document as the source of image.gif.' Click on No and then click Update. The image is now updated and optimized in Dreamweaver. This saves you the trouble of opening the image in Fireworks, resizing it and exporting it again.
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            <a href="javascript:void(0);">Dreamweaver Tips & Tutorials <div><dt></dt><dd>We've shared some really cool tips on Macromedia Dreamweaver in this article. They are handy tips that all Dreamweaver users should know about to allow more flexibility and creativity while designing sites in Dreamweaver.
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            <a href="javascript:void(0);">Jump Menus, Pop Up Windows and Swap Images
<div><dt></dt><dd>Rollovers are very easy using Dreamweaver. All you need to do is export two images from Fireworks (the image itself and the rollover image). Next, in Dreamweaver, click on Insert>Rollover Image. </dd></div>
</a>
        </li>
    </ul>
</div>
</body>
</html>
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<img src="" onmouseover="document.getElementById(id).style.display=none" style="display:none" />
历史和经验告诉我们用"单图转滚"是最好的办法.
1.W3C没问题
2.没有兼容性的问题
3.速度
不过,单图转滚没法贴出代码,要根据实际大小来做,
我的网站上用的就是这个方法,
看一下
在最下方的SITE MAP处有十个小图片