<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>D转换-4</title>
<style>
* {
margin: 0;
padding: 0;
}
ul {
margin: 100px;
}
ul li {
width: 120px;
height: 35px;
/* 去掉 li 的小点 */
list-style: none;
border-radius: 5px;
float: left;
margin: 0 5px;
/* 注意加在这里，方便 */
perspective: 400px;
}
.box {
height: 100%;
width: 100%;
position: relative;
transform-style: preserve-3d;
}
.box:hover {
transform: rotateX(90deg);
transition: all 1s;
}
.front,
.bottom {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
line-height: 35px;
text-align: center;
color: #fff;
}
.front {
background-color: pink;
z-index: 1;
transform: translateZ(17.5px);
}
.bottom {
background-color: purple;
/* 必须先写移动 */
transform: translateY(17.5px) rotateX(-90deg);
}
</style>
</head>
<body>
<!-- ul>li -->
<ul>
<li>
<!-- .box>.font+.bottom -->
<div class="box">
<div class="front">上面</div>
<div class="bottom">下面</div>
</div>
</li>
<li>
<!-- .box>.font+.bottom -->
<div class="box">
<div class="front">上面</div>
<div class="bottom">下面</div>
</div>
</li>
<li>
<!-- .box>.font+.bottom -->
<div class="box">
<div class="front">上面</div>
<div class="bottom">下面</div>
</div>
</li>
<li>
<!-- .box>.font+.bottom -->
<div class="box">
<div class="front">上面</div>
<div class="bottom">下面</div>
</div>
</li>
<li>
<!-- .box>.font+.bottom -->
<div class="box">
<div class="front">上面</div>
<div class="bottom">下面</div>
</div>
</li>
</ul>
</body>
</html>