Learn how to create a responsive navbar using HTML, CSS, and JavaScript in this comprehensive tutorial. Explore techniques for styling, implementing mobile-friendly designs, and adding interactive functionality. Discover how to use flex utility classes, create blurry background effects, handle browser support for backdrop-filter, and modify spacing with gap. Master the process of adding and styling a menu button, implementing open/close functionality, and adapting the navigation for larger screen sizes. Gain valuable insights into modern web development practices and enhance your frontend skills through practical examples and step-by-step guidance.