<!doctype html>
<html>
<head>
<meta charset=utf-8" />
<title></title>
<style>
li{
list-style-type:none;
float:left;
padding: 15px 30px 15px 30px;
position: relative;
}
.sp:hover{
transform: rotateX(-90deg);
}
.sp {
transition: all 0.5s ;
transform-style: preserve-3d;
position: absolute;
width: 100%;
height: 100%;
}
.spfront{
transform: rotatex(0deg) translatez(25px);
width: 100%;
height:50px;
position: absolute;
background-color: #FFFF00;
text-align: center;
line-height: 50px;
}
.spback{
transform: rotatex(90deg) translatez(25px);
width: 100%;
height: 50px;
position: absolute;
background-color: #ADFF2F;
text-align: center;
line-height: 50px;
}
</style>
</head>
<body>
<div>
<ul>
<li>
<span class="sp">
<span class="spfront">1</span>
<span class="spback">2</span>
</span>
</li>
<li>
<span class="sp">
<span class="spfront">3</span>
<span class="spback">4</span>
</span>
</li>
<li>
<span class="sp">
<span class="spfront">5</span>
<span class="spback">6</span>
</span>
</li>
</div>
</body>
</html>
效果如下:

gifhome_288x100_4s.gif