jquery鼠标经过导航

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>jQuery Hover Navigation</title>
    <style>
        .nav {
            display: flex;
        }
        .nav li {
            list-style: none;
            padding: 10px;
        }
        .submenu {
            display: none;
            position: absolute;
            background-color: #f9f9f9;
            border: 1px solid #ccc;
        }
    </style>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
    <ul class="nav">
        <li>Home</li>
        <li>Products
            <ul class="submenu">
                <li>Product 1</li>
                <li>Product 2</li>
                <li>Product 3</li>
            </ul>
        </li>
        <li>About</li>
        <li>Contact</li>
    </ul>

    <script>
        $(document).ready(function() {
            $('.nav > li').hover(
                function() {
                    $(this).find('.submenu').stop(true, true).slideDown();
                },
                function() {
                    $(this).find('.submenu').stop(true, true).slideUp();
                }
            );
        });
    </script>
</body>
</html>