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HTML部分
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<div>
<img src="img/1.jpg" alt="">
<img src="img/2.jpg" alt="">
</div>
</body>
</html>
CSS部分
div{
width: 500px;
height: 313px;
margin: 100px auto;
position: relative;
}
div img{
position: absolute;
top: 0;
left: 0;
transition: all 1s;
}
div img:first-child{
z-index: 1;
backface-visibility: hidden;/*不是正面对象的图像，就隐藏*/
}
div:hover img{
transform: rotateY(180deg);/*以Y轴为对称轴旋转180度*/
}
