CSS Fundamentals
Learn the visual building blocks of CSS from zero: colour and readable contrast, linear, radial and conic gradients, and natural-looking box shadows.
3 lessons
Academy
Free, plain-language lessons. Each one explains a single idea, works through a real example, lets you try it in one of our tools and ends with a short quiz.
Work through a path in order, or jump to the lesson you need. Every lesson explains one idea in plain language, works through a real example with numbers, lets you try it in a calculator, and ends with a five-question quiz.
The lessons are free and educational. We don't issue certificates or credentials, and nothing here is personal financial advice. Quiz progress is saved in this browser only. Nothing is sent to us.
Web development
Path 1