手风琴样式与控件1
<style>
* {
margin: 0;
padding: 0;
}
ul {
list-style: none;
width: 1300px;
}
#box {
width: 1200px;
height: 400px;
border: 2px solid red;
margin: 100px auto;
}
#box li {
width: 240px;
height: 400px;
/*border: 1px solid #000;*/
float: left;
}
</style>
<div id="box">
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
</div>
脚本
<script src="jquery-1.12.4.js"></script>
<script>
$(function () {
var $li = $("#box li");
for (var i = 0; i < $li.length; i++) {
$li.eq(i).css("backgroundImage", "url(images/" + (i + 1) + ".jpg)");
}
//给所有的li注册鼠标经过事件
$li.mouseenter(function () {
$(this).stop().animate({
width: 800
}).siblings().stop().animate({
width: 100
});
}).mouseleave(function () {
$li.stop().animate({
width: 240
});
});
});
</script>

手风琴样式与控件2
css + body
<style type="text/css">
* {
padding: 0;
margin: 0;
}
ul {
list-style-type: none;
}
.parentWrap {
width: 200px;
text-align: center;
}
.menuGroup {
border: 1px solid #999;
background-color: #e0ecff;
}
.groupTitle {
display: block;
height: 20px;
line-height: 20px;
font-size: 16px;
border-b