为甚麽无法实现3d效果 - 编程论坛

为什么无法实现3D效果，

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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>