css3动画（animation）效果2-旋转的星球

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>旋转的星球</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>
<strong>【简要介绍】</strong>
<p>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</p>
</body>
</html>
效果图：
原链接：https://www.cnblogs.com/xiaohuochai/p/5419236.html