代码如下：
<style>
#galleryh {
padding:0;
margin:0 auto 5em auto;
list-style-type:none;
overflow:hidden;
width:495px;
height:240px;
border:1px solid #888;
background:#fff url(http://www.webjx.com/upfiles/20060612/20060612204014_01.gif);
}
#galleryh li {
float:left;
}
#galleryh li a {
display:block;
height:240px;
width:28px;
float:left;
text-decoration:none;
border-right:1px solid #fff;
cursor:default;
}
#galleryh li a img {
width:28px;
height:240px;
border:0;
}
#galleryh li a:hover {
background:#eee;
width:320px;
}
#galleryh li a:hover img {
width:320px;
}
</style>
<ul id="galleryh">
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204102_01.jpg" alt="#1" title="#1" /></a></li>
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204120_02.jpg" alt="#2" title="#2" /></a></li>
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204132_03.jpg" alt="#3" title="#3" /></a></li>
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204146_04.jpg" alt="#4" title="#4" /></a></li>
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204204_05.jpg" alt="#5" title="#5" /></a></li>
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204215_06.jpg" alt="#6" title="#6" /></a></li>
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204232_07.jpg" alt="#7" title="#7" /></a></li>
</ul>
<style>
#galleryh {
padding:0;
margin:0 auto 5em auto;
list-style-type:none;
overflow:hidden;
width:495px;
height:240px;
border:1px solid #888;
background:#fff url(http://www.webjx.com/upfiles/20060612/20060612204014_01.gif);
}
#galleryh li {
float:left;
}
#galleryh li a {
display:block;
height:240px;
width:28px;
float:left;
text-decoration:none;
border-right:1px solid #fff;
cursor:default;
}
#galleryh li a img {
width:28px;
height:240px;
border:0;
}
#galleryh li a:hover {
background:#eee;
width:320px;
}
#galleryh li a:hover img {
width:320px;
}
</style>
<ul id="galleryh">
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204102_01.jpg" alt="#1" title="#1" /></a></li>
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204120_02.jpg" alt="#2" title="#2" /></a></li>
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204132_03.jpg" alt="#3" title="#3" /></a></li>
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204146_04.jpg" alt="#4" title="#4" /></a></li>
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204204_05.jpg" alt="#5" title="#5" /></a></li>
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204215_06.jpg" alt="#6" title="#6" /></a></li>
<li><a href="#nogo">
<img src="http://www.webjx.com/upfiles/20060612/20060612204232_07.jpg" alt="#7" title="#7" /></a></li>
</ul>
[Ctrl+A 全部选择 提示：你可先修改部分代码，再按运行]