The author uses quotes from popular TV shows such as Futurama and The Matrix to explain the concept of rules in CSS, likening it to a system based on rules like the Matrix itself. The author’s approach is pedantic, focusing on minute details and formalisms in teaching CSS layout. They cover topics such as box positioning, box sizing, additional properties influencing positioning, flexbox, and tricks and layout techniques. They provide a comprehensive guide for those already familiar with CSS, aiming to fill the gap in resources that aren’t pedantic enough. The content is unique in its depth and detail, offering applied examples and quizzes to test understanding.
http://book.mixu.net/css/