围绕Y轴旋转而不改变位置
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我正在尝试建立一个金字塔并为其制作动画。问题是在围绕X轴旋转之后，我尝试围绕金字塔的高度（Y轴）旋转它，但我每次都移动它。我基本上尝试了每个transform-origin选项，但它不起作用。我的代码如下：
谢谢您的帮助
.cube{
margin: 100px 200px;
}
.pyramid{
width: 0;
position: relative;
transform-style: preserve-3d;
animation: spin-pyramid 20s ease infinite alternate;
}
.base{
width: 200px;
height: 200px;
background: rgba(255,0,0,.5);
position: absolute;
}
.side{
width: 0;
height: 0;
border-bottom: 141.421px solid rgba(255, 255, 0, 0.5);
border-left: 100px solid transparent;
border-right: 100px solid transparent;
position: absolute;
top: 100px;
left: 0;
transform-origin: 50% 0;
}
.side-1{
transform: translateZ(100px) rotateX(-45deg);
}
.side-2{
border-bottom-color: rgba(0, 255, 255, 0.5);
transform: rotateZ(90deg) translateZ(100px) rotateX(-45deg);
}
.side-3{
border-bottom-color: rgba(255, 0, 255, 0.5);
transform: rotateZ(180deg) translateZ(100px) rotateX(-45deg);
}
.side-4{
border-bottom-color: rgba(0, 255, 0, 0.5);
transform: rotateZ(270deg) translateZ(100px) rotateX(-45deg);
}
@keyframes spin-pyramid {
10%{transform: rotateX(90deg);}
25%{transform: rotateY(90deg) rotateX(90deg);}
50%{transform: rotateY(180deg) rotateX(90deg);}
75%{transform: rotateY(270deg) rotateX(90deg);}
100%{transform: rotateY(360deg) rotateX(90deg);}
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="cube">
<div class="pyramids">
<div class="pyramid pyramid-1">
<div class="base"></div>
<div class="side side-1"></div>
<div class="side side-2">1.2</div>
<div class="side side-3">1.3</div>
<div class="side side-4">1.4</div>
</div>
<div class="pyramid pyramid-2"></div>
<div class="pyramid pyramid-3"></div>
<div class="pyramid pyramid-4"></div>
<div class="pyramid pyramid-5"></div>
<div class="pyramid pyramid-6"></div>
</div>
</div>
</body>
</html>答案
只需从.pyramid中删除.base和position:absolute中的width:0并添加display:inline-block。
这将为金字塔元素（您想要旋转）提供基座的高度和宽度，因此将相对于基座执行旋转。
.cube {
margin: 100px 200px;
}
.pyramid {
position: relative;
display:inline-block;
transform-style: preserve-3d;
animation: spin-pyramid 20s ease infinite alternate;
}
.base {
width: 200px;
height: 200px;
background: rgba(255, 0, 0, .5);
}
.side {
height:0;
width:0;
border-bottom: 141.421px solid rgba(255, 255, 0, 0.5);
border-left: 100px solid transparent;
border-right: 100px solid transparent;
position: absolute;
top: 100px;
left: 0;
transform-origin: 50% 0;
}
.side-1 {
transform: translateZ(100px) rotateX(-45deg);
}
.side-2 {
border-bottom-color: rgba(0, 255, 255, 0.5);
transform: rotateZ(90deg) translateZ(100px) rotateX(-45deg);
}
.side-3 {
border-bottom-color: rgba(255, 0, 255, 0.5);
transform: rotateZ(180deg) translateZ(100px) rotateX(-45deg);
}
.side-4 {
border-bottom-color: rgba(0, 255, 0, 0.5);
transform: rotateZ(270deg) translateZ(100px) rotateX(-45deg);
}
@keyframes spin-pyramid {
10% {
transform: rotateX(90deg);
}
25% {
transform: rotateY(90deg) rotateX(90deg);
}
50% {
transform: rotateY(180deg) rotateX(90deg);
}
75% {
transform: rotateY(270deg) rotateX(90deg);
}
100% {
transform: rotateY(360deg) rotateX(90deg);
}
}<div class="cube">
<div class="pyramids">
<div class="pyramid pyramid-1">
<div class="base"></div>
<div class="side side-1"></div>
<div class="side side-2">1.2</div>
<div class="side side-3">1.3</div>
<div class="side side-4">1.4</div>
</div>
<div class="pyramid pyramid-2"></div>
<div class="pyramid pyramid-3"></div>
<div class="pyramid pyramid-4"></div>
<div class="pyramid pyramid-5"></div>
<div class="pyramid pyramid-6"></div>
</div>
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