diff --git a/package.json b/package.json
index 8633df7..3e8a189 100644
--- a/package.json
+++ b/package.json
@@ -49,6 +49,7 @@
   "devDependencies": {
     "eslint": "^8.38.0",
     "jest": "^29.7.0",
+    "jest-environment-jsdom": "^30.0.0-beta.3",
     "nodemon": "^2.0.22",
     "supertest": "^6.3.3"
   },
diff --git a/public/js/vivid-market.js b/public/js/vivid-market.js
index fc4980a..cc8696e 100644
--- a/public/js/vivid-market.js
+++ b/public/js/vivid-market.js
@@ -1,9 +1,15 @@
 /**
- * Placeholder function for initializing notifications.
- * TODO: Implement actual notification initialization logic.
+ * Initialize the notification system by creating a toast container
+ * if it doesn't already exist. This container will hold all
+ * notification elements.
  */
 function initializeNotifications() {
-  console.warn('initializeNotifications function called, but not implemented.');
+  let container = document.querySelector('.notification-container');
+  if (!container) {
+    container = document.createElement('div');
+    container.className = 'notification-container';
+    document.body.appendChild(container);
+  }
 }
 /**
  * Vivid Market JavaScript
@@ -217,26 +223,31 @@ function initializeItemPreviews() {
  * @param {string} type - Notification type (success, error, info)
  */
 function showNotification(message, type = 'info') {
-  // Create notification element if it doesn't exist
-  let notification = document.querySelector('.notification');
-  if (!notification) {
-    notification = document.createElement('div');
-    notification.className = 'notification';
-    document.body.appendChild(notification);
-  }
+  // Ensure container exists
+  initializeNotifications();
 
-  // Set notification content and type
-  notification.textContent = message;
+  const container = document.querySelector('.notification-container');
+
+  // Create individual toast element
+  const notification = document.createElement('div');
   notification.className = `notification ${type}`;
+  notification.textContent = message;
+
+  container.appendChild(notification);
 
-  // Show notification
+  // Trigger show animation
   setTimeout(() => {
     notification.classList.add('show');
   }, 10);
 
-  // Hide notification after 3 seconds
+  // Hide and remove after 3 seconds
   setTimeout(() => {
     notification.classList.remove('show');
+    notification.addEventListener(
+      'transitionend',
+      () => notification.remove(),
+      { once: true }
+    );
   }, 3000);
 }
 
@@ -377,3 +388,12 @@ function initializePurchaseFlow() {
 function isUserLoggedIn() {
   return document.body.classList.contains('user-logged-in');
 }
+
+// Export functions for testing in Node environments
+if (typeof module !== 'undefined') {
+  module.exports = {
+    initializeNotifications,
+    showNotification,
+    isUserLoggedIn
+  };
+}
diff --git a/tests/vivid-market-notifications.test.js b/tests/vivid-market-notifications.test.js
new file mode 100644
index 0000000..eec88a3
--- /dev/null
+++ b/tests/vivid-market-notifications.test.js
@@ -0,0 +1,34 @@
+/**
+ * @jest-environment jsdom
+ */
+const { initializeNotifications, showNotification } = require('../public/js/vivid-market');
+
+describe('Vivid Market Notifications', () => {
+  beforeEach(() => {
+    document.body.innerHTML = '';
+  });
+
+  test('initializeNotifications creates a container', () => {
+    initializeNotifications();
+    const container = document.querySelector('.notification-container');
+    expect(container).not.toBeNull();
+  });
+
+  test('showNotification appends a toast', () => {
+    jest.useFakeTimers();
+    initializeNotifications();
+    showNotification('Test', 'success');
+
+    const container = document.querySelector('.notification-container');
+    expect(container.children.length).toBe(1);
+
+    const toast = container.firstElementChild;
+    expect(toast.textContent).toBe('Test');
+    expect(toast.classList.contains('success')).toBe(true);
+
+    jest.advanceTimersByTime(20);
+    expect(toast.classList.contains('show')).toBe(true);
+
+    jest.useRealTimers();
+  });
+});