Building a Retirement Planner Web App with Vanilla HTML, CSS, and JavaScript.

Building a Retirement Planner Web Appis a practical guide for learning front-end development by creating a complete web application without frameworks. Through a question-and-answer format, the book walks you through each step of the process, from setting up your project and structuring your HTML, to styling with CSS and adding interactivity with JavaScript.

You’ll learn how to handle user input, perform calculations, display results, and improve usability across devices. The book also covers basic validation, testing, and ways to take the project further as your skills grow.

This guide is intended for readers with some basic knowledge of HTML, CSS, and JavaScript who want to gain experience by building a real-world project with clear, focused instruction.