diff --git a/src/features/SSP-3.js b/src/features/SSP-3.js
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+```html
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Button Interaction</title>
+    <style>
+        * {
+            margin: 0;
+            padding: 0;
+            box-sizing: border-box;
+        }
+
+        body {
+            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            min-height: 100vh;
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+        }
+
+        .container {
+            background: white;
+            padding: 40px;
+            border-radius: 8px;
+            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
+            text-align: center;
+            min-width: 300px;
+        }
+
+        h1 {
+            font-size: 28px;
+            color: #333;
+            margin-bottom: 30px;
+            font-weight: 600;
+        }
+
+        button {
+            background-color: #667eea;
+            color: white;
+            border: none;
+            padding: 12px 30px;
+            font-size: 16px;
+            border-radius: 4px;
+            cursor: pointer;
+            transition: background-color 0.3s ease, transform 0.1s ease;
+            font-weight: 500;
+        }
+
+        button:hover {
+            background-color: #5568d3;
+        }
+
+        button:active {
+            transform: scale(0.98);
+        }
+
+        button:focus {
+            outline: none;
+            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3);
+        }
+
+        #message {
+            margin-top: 20px;
+            font-size: 24px;
+            color: #764ba2;
+            font-weight: 600;
+            min-height: 32px;
+            animation: fadeIn 0.3s ease;
+        }
+
+        @keyframes fadeIn {
+            from {
+                opacity: 0;
+                transform: translateY(-10px);
+            }
+            to {
+                opacity: 1;
+                transform: translateY(0);
+            }
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <h1>JavaScript Button Interaction</h1>
+        <button id="clickButton">Click me</button>
+        <div id="message"></div>
+    </div>
+
+    <script>
+        document.getElementById('clickButton').addEventListener('click', function() {
+            document.getElementById('message').textContent = 'Hello, world!';
+        });
+    </script>
+</body>
+</html>
+```
\ No newline at end of file
