HTML and CSS Introduction

This tutorial blends the core HTML markup skills with the CSS styling techniques you need to build real websites.

• How HTML structures content using semantic, accessible elements.
• How CSS controls layout, colors, typography, and responsive behavior.
• How to combine HTML and CSS to build reusable components and full projects.
• Best practices for accessibility, performance, debugging, and deployment.

This tutorial starts from the basics and gradually adds more skills.

Each chapter builds on the previous one:

• Setup: Configure your tools, create your first HTML and CSS file, and learn workflow tips.
• Foundations: Master HTML structure, text, lists, media, forms, and reusable snippets.
• Styling Core: Work with selectors, cascade rules, typography, colors, and the box model.
• Layout: Build flexible layouts with positioning, Flexbox, Grid, and responsive patterns.
• Enhancements: Add polish with custom properties, functions, transitions, transforms, and animations.
• Quality: Ensure accessibility, performance, maintainability, and efficient tooling.
• Projects: Apply everything in guided projects and prepare for deployment.

Use the left-hand menu (or the menu icon on mobile) to navigate between lessons.

• Read the explanations carefully. We highlight important definitions and gotchas.
• Run the embedded examples. Edit the HTML and CSS to immediately see the result.
• Complete the exercises and challenges at the end of each topic.

Save each experiment so you can compare improvements over time.

See how HTML elements and CSS rules work together on the same page:

• No prior coding experience is required. We start from the ground up.
• An eager mindset and willingness to practice will help you succeed!