css点击小图显示大图片

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Click Small Image to Show Large Image</title>
    <style>
        .thumbnail {
            cursor: pointer;
            margin: 10px;
        }
        .large-image {
            display: none;
            max-width: 100%;
            height: auto;
        }
    </style>
</head>
<body>
    <img src="small-image.jpg" alt="Small Image" class="thumbnail" onclick="showLargeImage()">
    <img src="large-image.jpg" alt="Large Image" class="large-image" id="largeImage">

    <script>
        function showLargeImage() {
            var largeImage = document.getElementById('largeImage');
            if (largeImage.style.display === 'none') {
                largeImage.style.display = 'block';
            } else {
                largeImage.style.display = 'none';
            }
        }
    </script>
</body>
</html>