为甚麽无法实现3d效果
为什么无法实现3D效果，
程序代码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>3d旋转的练习</title>
<style>
body {
perspective: 1000px;
}
section {
width: 300px;
height: 200px;
margin: 100px auto;
background: url(images/z1.jpg) no-repeat;
background-size: cover;
position: relative;
transform-style: preserve-3d;
transition: all 5s linear;
}
section div img {
width: 100%;
height: 100%;
position: absolute;
left: 0;
top: 0;
}
section div:nth-child(1) img {
transform: rotateY(0deg) translateZ(400px);
}
section div:nth-child(2) img {
transform: rotateY(60deg) translateZ(400px);
}
section div:nth-child(3) img {
transform: rotateY(120deg) translateZ(400px);
}
section div:nth-child(4) img {
transform: rotateY(180deg) translateZ(400px);
}
section div:nth-child(5) img {
transform: rotateY(240deg) translateZ(400px);
}
section div:nth-child(6) img {
transform: rotateY(300deg) translateZ(400px);
}
section:hover {
transform: rotateY(360deg);
}
</style>
</head>
<body>
<section>
<div><img src="images/1.jpg" /></div>
<div><img src="images/2.jpg" /></div>
<div><img src="images/3.jpg" /></div>
<div><img src="images/4.jpg" /></div>
<div><img src="images/5.jpg" /></div>
<div><img src="images/6.jpg" /></div>
</section>
</body>
</html>
