代码语言：javascript复制
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style type="text/css">
*{padding: 0px;margin: 0px;}
div
{
width: 200px;height: 200px;background: black;
position: absolute;left: 50%;top: 50%;margin: 100px 0 0 -200px;
transition: 5s;
}
div img
{
width: 100%;height: 100%;float: left;
}
div:hover
{
transform: rotateY(180deg);
}
</style>
</head>
<body>
<div><img src="21312.jpg"></div>
</body>
</html>核心;transition: 5s;放在div里面就会怎么过来怎么回来。放再:hover就会怎么过去，一瞬间回来。
代码语言：javascript复制<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style type="text/css">
*{margin: 0;padding:0;list-style: none;}
div
{
width: 200px;height: 200px;background: black;float: left;transition: 1s;
}
div img
{
width: 100%;height: 100%;float: left;
}
#div1:hover
{
transform: translateY(-230px);
}
</style>
</head>
<body>
<div id="div1"><img src="21312.jpg"></div>
<div></div>
</body>
</html><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style type="text/css">
*{margin: 0;padding:0;list-style: none;}
#div1
{
width: 200px;height: 200px;background: black;float: left;transition: 5s;position: absolute;left: 50%;top: 50%;margin: -100px 0 0 -100px;
transform-style: preserve-3d;
}
#div1:hover
{
transform:perspective(100px) rotateY(80deg);
}
#div1>div
{
width: 100%;height: 100%;background: yellow;position: absolute;transform: translateZ(-90px);
}
</style>
</head>
<body>
<div id='div1'>
<div></div>
</div>
</body>
</html>
