HTML, CSS & Sass - Technical Handbook

HTML, CSS & Sass Memento

The essentials of front-end development — in one document

This memento brings together the core foundations of HTML, modern CSS, and Sass in a clear and structured format.
It’s designed for web developers who want to go straight to the point — no fluff, no distractions, just practical content.

What you’ll learn

• The structure of a clean, semantic HTML page
• CSS fundamentals: box model, selectors, positioning
• Responsive design using em/rem, vh/vw, and media queries
• Flexbox and Grid for modern, adaptive layouts
• Sass for writing cleaner, modular, and maintainable CSS

What you’ll get

• A 43-page PDF
• Easy-to-read, well-structured content
• A reliable reference to use during your projects or revisions

Who it’s for

• Beginner front-end developers
• Students in training or career changers
• Freelancers and self-taught devs who want to strengthen their foundations
• Anyone preparing to dive into JavaScript or a front-end framework