ChatGPT 写的彩虹渐变动态背景，效果不错。

效果（gif 图太大就不传了，传个静态的图片吧）：

2024-04-01T16:02:17.png

源码如下：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Cool Background</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            overflow: hidden;
            background: linear-gradient(-45deg, #ff0000, #ff8000, #ffff00, #80ff00, #00ff00, #00ff80, #00ffff, #0080ff, #0000ff, #8000ff, #ff00ff, #ff0080, #ff0000);
            background-size: 300% 300%;
            animation: rainbow 15s ease infinite;
            height: 100vh;
            width: 100%;
        }

        @keyframes rainbow {
            0% {
                background-position: 0% 50%;
            }
            50% {
                background-position: 100% 50%;
            }
            100% {
                background-position: 0% 50%;
            }
        }
    </style>
</head>
<body>
</body>
</html>

标签: css, chatgpt