<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>翻转18</title>
<style>
#test{
400px;
height: 400px;
position: absolute;
margin-left: 100px;
margin-top: 100px;
perspective: 500px;
}
#test1{
400px;
height: 400px;
position: relative;
transform-style: preserve-3d;
}
#div2{
400px;
height: 400px;
position: relative;
background: lightcoral;
-webkit-transition: all 1s;
}
#test #test1:hover #div2{
-webkit-transform: rotateX(180deg);
}
</style>
</head>
<body>
<div id="test">
<div id="test1">
<div id="div2"></div>
</div>
</div>
</body>
</html>