<!DOCTYPE html>
<html>
<head>
<!--
backface-visibility属性用来设置，是否显示元素的背面，默认是显示的
backface-visibility:keyword;
keyword有两个值，hidden和visible，默认是是visible
所以是在每个元素里面设置的
-->
<meta charset="UTF-8">
<title></title>
<style type="text/css">
*{
padding: 0;
margin: 0;
}
#wrap{
position: absolute;
left: 50%;
top: 50%;
width: 400px;
height: 400px;
margin-left: -200px;
margin-top: -200px;
border: 1px solid;
perspective: 200px;
background: url(3.jpg) no-repeat;
background-size:100% 100%;
}
#wrap > .box{
width: 100px;
height: 100px;
position: absolute;
left: 0;
top: 0;
right: 0;
bottom: 0;
margin: auto;
transform-style: preserve-3d;
transition: 3s;
transform-origin: center center 50%;
}
#wrap > .box > div{
position: absolute;
width: 100px;
height: 100px;
background: rgba(123,321,333,.3);
text-align: center;
font: 50px/100px "微软雅黑";
backface-visibility: hidden;
}
#wrap > .box >div:nth-child(5){
top: -100px;
transform-origin: bottom;
transform: rotateX(90deg);
}
#wrap > .box >div:nth-child(6){
bottom: -100px;
transform-origin: top;
transform: rotateX(-90deg);
}
#wrap > .box >div:nth-child(3){
left: -100px;
transform-origin: right;
transform: rotateY(-90deg);
}
#wrap > .box >div:nth-child(4){
right: -100px;
transform-origin: left;
transform: rotateY(90deg);
}
#wrap > .box >div:nth-child(2){
transform: translateZ(-100px) rotateX(180deg);
}
#wrap > .box >div:nth-child(1){
z-index: 1;
}
#wrap:hover .box{
transform: rotate3d(1,1,1,180deg);
}
</style>
</head>
<body>
<div id="wrap">
<div class="box">
<div>前</div>
<div>后</div>
<div>左</div>
<div>右</div>
<div>上</div>
<div>下</div>
</div>
</div>
</body>
</html>
