麻烦老师检查一下了谢谢~

来源：2-18 编程练习

转行学习中_阶段一

2022-10-21 17:25:54

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>2-9</title>
    <style type="text/css">
        div {
            font-family: Arial;
            font-size: 72px;
            font-weight: bold;
            position: fixed;
            right: 50%;
            left: 50%;
            bottom: 30px;
            width: 30px;
            height: 30px;
            margin: auto;
            transform: rotate(90deg);
            /*此处写代码*/
            animation: move 1s linear 0.5s infinite alternate-reverse ;  
        }
        @keyframes move {
            from {
                transform: rotate(90deg) translateX(0px)
            }
            to {
                transform: rotate(90deg) translateX(20px);
            }
        }
       
    </style>
</head>
<body>
    <div>&gt;</div>
</body>
</html>

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