先放效果图
代码:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style type="text/css">
* {
margin: 0;
padding: 0;
}
img {
border: none;
display: block;
}
#acc {
width: 640px;
height: 140px;
margin: 0 auto;
}
#acc ul {
border-left: 1px solid #ddd;
height: 140px;
position: relative;
}
#acc ul li {
width: 50px;
height: 138px;
border: 1px solid #ddd;
float: left;
list-style: none;
border-left: 0;
position: relative;
overflow: hidden;
}
#acc ul li.active {
width: 434px;
}
#acc ul li h3 {
font-size: 14px;
color: #000;
font-weight: 100;
width: 14px;
height: 98px;
padding: 40px 18px 0;
}
#acc ul li h3.active {
background: #f42760;
color: #fff;
}
#acc ul li div {
width: 383px;
height: 138px;
background: blue;
position: absolute;
top: 0;
left: 50px;
border-left: 1px solid #ddd;
z-index: 0;
}
#acc ul li img {
width: 383px;
height: 138px;
}
#acc ul li.last {
position: absolute;
top: 0;
right: 0;
}
</style>
</head>
<body>
<div id="acc">
<ul>
<li class="active">
<h3 class="active">红玫瑰</h3>
<div><img src="img/bg1.jpg" /></div>
</li>
<li>
<h3>白玫瑰</h3>
<div><img src="img/bg2.jpg" /></div>
</li>
<li>
<h3>红玫瑰</h3>
<div><img src="img/bg3.jpg" /></div>
</li>
<li>
<h3>白玫瑰</h3>
<div><img src="img/bg4.jpg" /></div>
</li>
<li class="last">
<h3>红玫瑰</h3>
<div><img src="img/bg5.jpg" /></div>
</li>
</ul>
</div>
<script src="js/jquery-1.11.3.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
$(function() {
//鼠标移到当前li上，当前li的宽度变成434px,li里的h3要添加一个类名active让背景变红，文字变白
$("#acc")
.find("li")
.mouseover(function() {
$(this)
.stop()
.animate({
width: "434px"
}, 800)
.children("h3")
.addClass("active")
//end()是从h3回到li上去
.end()
.siblings() //当前li的所有兄弟li
.stop()
.animate({
width: "50px"
}, 800)
.children("h3")
.removeClass("active");
});
});
</script>
</body>
</html>