旋转的星球主要通过rotate()旋转函数来实现。实际上，蓝色的地球和黑色的月球并没有发生旋转，只是其父级旋转形成的视觉上的旋转效果、正方体合成)
例子1：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
.box{
transform: scale(0.5);
position: relative;
padding: 1px;
height: 300px;
width: 300px;
}
.sunline{
position:relative;
height: 400px;
width: 400px;
border: 2px solid black;
border-radius: 50%;
margin: 50px 0 0 50px;
display: flex;
animation: rotate 10s infinite linear;
}
.sun{
height: 100px;
width: 100px;
margin: auto;
background-color: red;
border-radius: 50%;
box-shadow: 5px 5px 10px red,-5px -5px 10px red,5px -5px 10px red,-5px 5px 10px red;
}
.earthline{
position: absolute;
right: 0;
top: 50%;
height: 200px;
width: 200px;
margin: -100px -100px 0 0;
border: 1px solid black;
border-radius: 50%;
display: flex;
animation: rotate 2s infinite linear;
}
.earth{
margin: auto;
height: 50px;
width: 50px;
background-color: blue;
border-radius: 50%;
}
.moon{
position: absolute;
left: 0;
top: 50%;
height: 20px;
width: 20px;
margin: -10px 0 0 -10px;
background-color: black;
border-radius: 50%;
}
@keyframes rotate{
100%{transform:rotate(360deg);}
}
</style>
</head>
<body>
<div class="box">
<div class="sunline">
<div class="sun"></div>
<div class="earthline">
<div class="earth"></div>
<div class="moon"></div>
</div>
</div>
</div>
</body>
</html>
动态效果点：上面的运行代码来看
【鼠标移入元素内停止运动的实现】
如果要在内侧旋转的球内放文本，并且文本不跟着旋转，则代码如下
例子2：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
@keyframes spin{
100%{transform:rotate(1turn);
}
}
.outer{
width: 100px;height: 100px;background-color: pink;border-radius: 50%;animation: spin 3s linear infinite;animation-play-state:running;text-align: center;
}
.inner{
width: 40px;height: 40px;line-height:40px;background-color: tan;border-radius: 50%;animation: inherit;animation-direction:reverse;
}
div:hover,div:focus{
animation-play-state:paused;
}
</style>
</head>
<body>
<div class="outer">
<div class="inner">期权记</div>
</div>
</body>
</html>
原文链接：https://www.qiquanji.com/post/8031.html
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