test/test.html at main · Fresser99/test · GitHub

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>滚动固定效果</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: Arial, sans-serif;
        }

        .section-1 {
            height: 100vh;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2rem;
        }

        .section-2 {
            height: 100vh;
            background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2rem;
            position: sticky;
            top: 0; /* 到达顶部时固定 */
        }

        /* 如果想在视口中心固定，使用这个 */
        .section-2-center {
            position: sticky;
            top: 50%;
            transform: translateY(-50%);
        }

        .spacer {
            height: 200vh; /* 额外空间用于展示固定效果 */
            background: #f0f0f0;
            padding: 2rem;
        }
    </style>
</head>
<body>
    <section class="section-1">
        <h1>Section 1 - 会正常滚动上去</h1>
    </section>

    <section class="section-2">
        <h1>Section 2 - 到达顶部时固定</h1>
    </section>

    <div class="spacer">
        <p>继续滚动查看固定效果...</p>
    </div>
</body>
</html>