CSS, a shorthand for Cascading Style Sheets, is one of the main building blocks of the Web. Its history goes back to the 90's and along with HTML it has changed a lot since its humble beginnings.

This handbook is aimed at a vast audience.
- First, the beginner. I explain CSS from zero in a succinct but comprehensive way, so you can use this book to learn CSS from the basics.
- Then, the professional. CSS is often considered like a secondary thing to learn, especially by JavaScript developers. They know CSS is not a real programming language, they are programmers and therefore they should not bother learning CSS the right way. I wrote this book for you, too.
- Next, the person that knows CSS from a few years but hasn't had the opportunity to learn the new things in it. We'll talk extensively about the new features of CSS, the ones that are going to build the web of the next decade. CSS has improved a lot in the past few years and it's evolving fast.

Even if you don't write CSS for a living, knowing how CSS works can help save you some headaches when you need to understand it from time to time, for example while tweaking a web page.

This open book is licensed under a Open Publication License (OPL). You can download The CSS Handbook ebook for free in PDF format (3.0 MB).