HTML与CSS进阶教程内容结合笔者在前后端大量开发中的实战经验，系统化知识，浓缩精华，用通俗易懂的语言直击学习者的痛点。通过本书，能让你从“野生网页设计师”水平提升达到“真正前端工程师”水平。 全书分为两大部分：首部分是HTML进阶内容，主要介绍HTML高级技巧和HTML语义化；第二部分是CSS进阶内容，主要介绍CSS开发技巧、代码规范、性能优化、属性本质、重要概念（如包含块、BFC和IFC等）。 除了知识讲解，教程还融入了大量的开发案例，更加注重编程思维的培养，并且提供学习者一个流畅的学习思路。(This book is written on the basis of Big Nerd Ranch training textbook, which is a well-known training institute. It covers the key technical points urgently needed by modern front-end developers such as HTML5, CSS3, including responsive UI, access to remote Web services, building applications with Ember.js, and so on. In addition, it also introduces how to use the frontier development tools to debug and test code, and make full use of the powerful functions of Node.js and various open source NPM modules to develop. The book is divided into four parts, each part completes a project independently, from shallow to deep, step by step. In the process of building a series of applications, the core concepts and APIs of Web development are introduced. Whether you have experience in Web development or have background in other platforms, this book will benefit you greatly as long as you are interested in today's popular tools and development practices.)