下面代码可实现3D立方体，比较好理解，就是让每个面先平移到指定位置，然后旋转90度
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>3D转换模块-正方体</title>
<style>
*{
margin: 0;
padding: 0;
}
ul{
width: 200px;
height: 200px;
border: 1px solid #000;
box-sizing: border-box;
margin: 100px auto;
position: relative;
transform: rotateY(0deg) rotateX(0deg);
transform-style: preserve-3d;
}
ul li{
list-style: none;
width: 200px;
height: 200px;
font-size: 60px;
text-align: center;
line-height: 200px;
position: absolute;
left: 0;
top: 0;
}
ul li:nth-child(1){
background-color: red;
transform: translateX(-100px) rotateY(90deg);
}
ul li:nth-child(2){
background-color: green;
transform: translateX(100px) rotateY(90deg);
}
ul li:nth-child(3){
background-color: blue;
transform: translateY(-100px) rotateX(90deg);
}
ul li:nth-child(4){
background-color: yellow;
transform: translateY(100px) rotateX(90deg);
}
ul li:nth-child(5){
background-color: purple;
transform: translateZ(-100px);
}
ul li:nth-child(6){
background-color: pink;
transform: translateZ(100px);
} </style>
</head>
<body>
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<li>6</li>
</ul>
</body>
</html>
但是缺点是 如果我们旋转每个面面对自己的时候，里面的数字可能并不是正序的，如图：
这里的5就是反的，为了解决这个问题，我们需要做的是 针对 上，后，下，前 四个面进行先旋转在平移的处理，就可以保证转向我们的面始终是正序的
代码如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>3D转换模块-正方体终极</title>
<style>
*{
margin: 0;
padding: 0;
}
ul{
width: 200px;
height: 200px;
border: 1px solid #000;
box-sizing: border-box;
margin: 100px auto;
position: relative;
transform: rotateY(0deg) rotateX(0deg);
transform-style: preserve-3d;
}
ul li{
list-style: none;
width: 200px;
height: 200px;
font-size: 60px;
text-align: center;
line-height: 200px;
position: absolute;
left: 0;
top: 0;
}
/*上面*/
ul li:nth-child(1){
background-color: red;
transform: rotateX(90deg) translateZ(100px);
}
/*后面*/
ul li:nth-child(2){
background-color: green;
transform: rotateX(180deg) translateZ(100px);
}
/*下面*/
ul li:nth-child(3){
background-color: blue;
transform: rotateX(270deg) translateZ(100px);
}
/*
前面*/
ul li:nth-child(4){
background-color: yellow;
transform: rotateX(360deg) translateZ(100px);
}
/*
左面
*/
ul li:nth-child(5){
background-color: purple;
transform: translateX(-100px) rotateY(90deg);
}
/*
右面
*/
ul li:nth-child(6){
background-color: pink;
transform: translateX(100px) rotateY(90deg);
} </style>
</head>
<body>
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<li>6</li>
</ul>
</body>
</html>
如果实现旋转效果，就需要加上CSS3中的animation属性，代码如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>110-3D转换模块-练习</title>
<style>
*{
margin: 0;
padding: 0;
}
body{
/*想看到整个立方的近大远小效果, 就给ul的父元素添加透视*/ perspective: 500px; }
ul{
width: 200px;
height: 200px;
box-sizing: border-box;
margin: 100px auto;
position: relative;
transform: rotateY(0deg) rotateX(0deg);
transform-style: preserve-3d;
animation: sport 5s linear 0s infinite normal;
}
ul li{
list-style: none;
width: 200px;
height: 200px;
font-size: 60px;
text-align: center;
line-height: 200px;
position: absolute;
left: 0;
top: 0;
}
ul li:nth-child(1){
background-color: red;
transform: rotateX(90deg) translateZ(100px) scale(2, 1);
}
ul li:nth-child(2){
background-color: green;
transform: rotateX(180deg) translateZ(100px) scale(2, 1);
}
ul li:nth-child(3){
background-color: blue;
transform: rotateX(270deg) translateZ(100px) scale(2, 1);
}
ul li:nth-child(4){
background-color: yellow;
transform: rotateX(360deg) translateZ(100px) scale(2, 1);
}
ul li:nth-child(5){
background-color: purple;
transform: translateX(-200px) rotateY(90deg);
}
ul li:nth-child(6){
background-color: pink;
transform: translateX(200px) rotateY(90deg);
}
ul li img{
/*
注意点:
只要父元素被拉伸了,子元素也会被拉伸
*/
width: 200px;
height: 200px;
}
@keyframes sport {
from{
transform: rotateX(0deg);
}
to{
transform: rotateX(360deg);
}
}
</style>
</head>
<body>
<ul>
<li><img src="data:images/banner11.jpg" alt=""></li>
<li><img src="data:images/banner21.jpg" alt=""></li>
<li><img src="data:images/banner31.jpg" alt=""></li>
<li><img src="data:images/banner41.jpg" alt=""></li>
<li></li>
<li></li>
</ul>
</body>
</html>