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+### **Day 27: JavaScript in Action**
+
+Welcome to another day of growth and learning! 🚀 Embrace today's challenge with enthusiasm and determination. Remember, every line of code you write brings you one step closer to mastering your craft. Let's make today count! 💪
+
+- **Topics to Learn**:
+  - Toggling classes with JavaScript.
+  - Showing and hiding elements dynamically.
+  - Using `classList` to add and remove classes.
+  - Working with the `display` and `visibility` properties.
+- **Resources**:
+  - [MDN Web Docs - JavaScript Basics](https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Building_blocks)
+  - [W3Schools - JavaScript Examples](https://www.w3schools.com/js/js_examples.asp)
+- **Mini Project**:
+  - Create a webpage where clicking a button toggles the visibility of a section and changes its background color.