jquery 淡入淡出滑动

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>jQuery Fade In/Out and Slide</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <style>
        .box {
            width: 100px;
            height: 100px;
            background-color: red;
            margin: 20px;
        }
    </style>
</head>
<body>
    <div class="box"></div>
    <button id="fadeInBtn">Fade In</button>
    <button id="fadeOutBtn">Fade Out</button>
    <button id="slideDownBtn">Slide Down</button>
    <button id="slideUpBtn">Slide Up</button>

    <script>
        $(document).ready(function() {
            $('#fadeInBtn').click(function() {
                $('.box').fadeIn(1000);
            });

            $('#fadeOutBtn').click(function() {
                $('.box').fadeOut(1000);
            });

            $('#slideDownBtn').click(function() {
                $('.box').slideDown(1000);
            });

            $('#slideUpBtn').click(function() {
                $('.box').slideUp(1000);
            });
        });
    </script>
</body>
</html>