Web Development · Lesson 4

Build an Interactive Front-End with HTML, CSS and JavaScript

Connect structure, presentation and behavior through a complete front-end learning project.

The value of a bootcamp project is integration. Keep each layer responsible for its own job and test behavior in small increments.

What you will learn

  • Translate a feature into HTML, CSS and JavaScript responsibilities
  • Manipulate the DOM from explicit user actions
  • Debug a front-end feature one assumption at a time
Practice assignmentAdd a filter or theme control to a small page. Make it work without a framework, preserve keyboard access and explain the state changes in a short README.

How to get the most from this lesson

  1. Preview the learning outcomes before pressing play.
  2. Pause when the creator demonstrates a decision and reproduce it in your own test project.
  3. Complete the practice assignment without copying the finished example.
  4. Write down one principle you can reuse in a different project.

Quality checklist

  • Can you explain the core idea without replaying the video?
  • Did you produce a small, verifiable result?
  • Did you check tool permissions, licenses and current documentation before applying it to important work?
Creator credit: This lesson features a video by freeCodeCamp.org. Black Edition did not produce or re-upload the video; our companion guide is independently written to add learning context and practice.